VIRTUAL RADIOLOGIC PROFESSIONALS AMENDED AND RESTATED

Exhibit 10.70

VIRTUAL RADIOLOGIC PROFESSIONALS

AMENDED AND RESTATED

INDEPENDENT PHYSICIAN AGREEMENT

This Amended and Restated Independent Physician Agreement including all exhibits and all addenda attached hereto (“Agreement”) is effective as of September 13, 2007 (the “Effective Date”), by and between VIRTUAL RADIOLOGIC PROFESSIONALS, LLC, a Delaware limited liability company (“Practice”) and Sean O. Casey, M.D. (“Physician”), sometimes referred to collectively as “the Parties.”

WHEREAS, Physician is an independent medical practitioner, specializing in the field of radiology;

WHEREAS, Practice is a professional medical practice that provides radiology interpretation and consultation services to remote locations primarily through one or more secure network connections;

WHEREAS, Practice provides its service under direct or indirect contract with radiology groups (“Customers”) for coverage for medical facilities (“Clients”);

WHEREAS, Practice also provides services directly to medical facilities (in such context, “Customers”);

WHEREAS, Practice typically provides evening and weekend coverage to its Customers, but also provides day coverage at its Customer’s request;

WHEREAS, Practice desires to engage Physician as an independent contractor in accordance with the terms and conditions of this Agreement; and

WHEREAS, Physician is agreeable to such engagement.

NOW, THEREFORE, in consideration of the above recitals and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

1.1 Provision of Services. Physician shall serve as the President and principle executive officer of the Practice, and shall additionally provide on request professional radiology interpretation and consultation services, including preliminary and/or official interpretations (the “Services”), via Practice’s Radiologic Information System (RIS) and image hosting system or by such other means as Practice may provide from time to time. Physician agrees to provide diagnostic reports as set forth on Exhibit C. Physician may elect to produce a non-diagnostic report in response to a request if the Client has not provided requested information necessary for Physician to produce a diagnostic report. Commencing on the Start Date (“Start Date”) Physician shall provide interpretation services on a limited and back-up basis only.

1.2 Payment for Services. In full consideration for all Services performed by Physician, Practice agrees to pay Physician the Compensation and Professional Fees in the amounts and upon the times and terms set forth on Exhibit A to this Agreement. Practice shall make such payments to Physician via electronic funds transfer, directed to a U.S. account or accounts designated in writing by Physician from time to time, or via check through U.S. mail. Practice shall reimburse Physician for all expenses necessarily or incidentally incurred in his performance of duties under this Agreement.

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1.3 Licensing and Credentialing Fees. Practice also agrees to pay all fees, including initial application, renewal or similar fees, necessary to secure, re-establish or renew Physician’s right to practice in the states identified in Exhibit B and such other states for which Practice from time to time requests Physician to be licensed (collectively “License Fees”) and fees associated with obtaining staff membership, reading rights, or clinical privileges (collectively “Clinical Privileges”) with medical facilities for which Physician will provide Services (collectively “Credentialing Fees”); subject in each case to reimbursement in accordance with Section 6.3.b upon termination of this Agreement during the Initial Term.

2.1 Professional Qualifications and Obligations. At all times during the Term of this Agreement (defined below), Physician: (a) shall maintain permanent residence in the United States (b) shall maintain Physician’s status as a board certified radiologist; (c) shall comply with the requirements of the American College of Radiology (“ACR”) relating to the provision of radiology and teleradiology services (d) shall be qualified and licensed to practice medicine in Physician’s jurisdiction of residence; (e) shall be continue to be qualified to be licensed to practice medicine in the states for which Practice requests Physician to become licensed and qualified; (f) shall not be under current exclusion or sanction by any state or federal health care program, including Medicare or Medicaid, or in any non-U.S. jurisdiction with the exception or exclusion solely based on geographic location; (g) shall have passed and thereafter maintain Practice medical staff status and privileges (“VRP Privileges”); (h) shall be eligible for coverage under Practice’s medical liability insurance and for medical liability insurance for the jurisdictions in which medical practice is performed and in the site of residence of the Physician; and (i) shall not, without the prior written consent of Practice, perform any services from a location outside of the United States or a Territory thereof. Physician agrees to accept an appointment as a Rotating Member of the Practice’s Quality Assurance (QA) committee and to perform the periodically required attendant duties described in Practice’s Physician’s Manual, “Radiology Quality Assurance- Discrepancy Reports” available at Practice’s Radiologist Portal (“Radiologist Portal”).

2.2 Reporting Requirements. Physician shall inform the Practice’s President or Board of Managers in writing immediately of: (a) any charge or conviction whatsoever of violation of any law or ordinance of any local, county, state or federal jurisdiction; (b) any denial or revocation of membership in a state, county or local medical society; (c) any denial or relinquishment of staff membership, reading rights, or clinical privileges at any time; (d) the initiation of any disciplinary action or inquiry concerning Physician by a hospital or medical staff, state medical licensing authority or federal authority or program including Medicare; (e) any malpractice claim asserted against Physician or settled or adjudicated by or on behalf of Physician; (f) any voluntary or involuntary surrender, suspension, revocation or restriction of a state or federal narcotics controlled substance permit; (g) any voluntary or involuntary surrender, suspension, revocation or restriction of any professional license; (h) revocation of any professional board certification; (i) any action commenced or taken against Physician by any licensing or privileging authority; (j) the commencement or taking of any disciplinary action or inquiry whatsoever by any licensing authority, institution or professional society; or (k) any agreement or understanding by or between Physician and any licensing authority that Physician will not apply for license renewal in a jurisdiction.

2.3 Clinical Privileges; License Applications. Physician shall obtain a state medical license (“License”) and clinical privileges (“Clinical Privileges”) for each state or medical facility requested by the Practice within a reasonable time following Practice’s request. Practice agrees to provide Physician with reasonable assistance, including the preparation and submission of applications necessary to obtain

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Licenses and Clinical Privileges at each hospital, imaging center, or other medical facility designated by Practice in its sole judgment to permit Physician to provide Services at such facility. Physician shall furnish promptly upon request by Practice all documentation, information or verifications necessary for the preparation and submission of applications for Licenses and Clinical Privileges. Physician shall maintain each License and Clinical Privilege granted to Physician until Practice specifies that such License or Clinical Privilege is no longer required; which shall include fulfillment of any applicable Continuing Medical Education (“CME”) or similar requirements for each state in which Physician holds a License or at each facility where Physician holds Clinical Privileges. Physician shall relinquish a Clinical Privilege upon a request to do so by Practice or by the institution that granted the Clinical Privilege. Practice shall provide Physician with reasonable assistance with maintenance and tracking of CME requirements for each state in which Physician holds a License. Upon termination of this Agreement, Physician and Practice shall share the costs of expenses associated with Licensing and Credentialing as set forth on Exhibit A.

2.4 Medicare Identification and Qualification. Upon request by Practice, Physician shall enroll or maintain enrollment in Medicare and/or similar or comparable public or private third party payor programs, and shall provide Physician’s unique identifying number or similar identification to Practice to facilitate billing. Practice agrees to provide Physician with reasonable assistance in completing and maintaining such enrollments.

2.5 Compliance with Professional Standards. Physician shall perform all Services contemplated by this Agreement in accordance with the standards of professional ethics and practice as may from time to time be applicable to the fields of medicine and radiology, in the United States and in each of the states in which Physician holds a License, including standards promulgated from time to time by the American College of Radiology for the practice of radiology and teleradiology.

2.6 Reports. Physician covenants and agrees that all reports (“Reports”) rendered by Physician shall include all pertinent findings and clinical impressions, and shall be personally reviewed and signed by Physician; and that Physician will verbally communicate clinical findings to an attending physician where appropriate for patient care. Physician accepts responsibility for the contents of all such signed reports and communications.

2.7 Independent Contractor.

a. Physician is and shall at all times remain an independent contractor to Practice. Nothing in this Agreement shall create, or be construed to create, any relationship between Physician and Practice other than that of an independent contractor. Physician hereby consents to Practice identifying Physician among Practice’s independent contractor physicians on Practice’s, or Practice’s management company’s, website.

b. Physician’s obligations under this agreement relate primarily to the provision of Services as President and principle executive officer of Practice.

c. Physician acknowledges that the Health Insurance Portability and Accountability Act of 1996 and related regulations (45 C.F.R. Parts 160 and 164) (“HIPAA”) and the Joint Commission on Accreditation of Healthcare Organizations (“The Joint Commission”) require Practice to establish and follow written procedures pertaining to the protection of patient information and the provision of health care services. Physician further agrees to abide by Practice’s written procedures complying with applicable HIPAA and The Joint Commission requirements in order that Practice and Physician may fulfill their respective legal obligations under HIPAA and in order that Practice may maintain its The Joint Commission accreditation. Practice’s written procedures applicable to physician are located on the Radiologist Portal.

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2.8 Obligation to Update. Upon Practice’s request from time to time, Physician shall provide certificates or other proof of continued compliance with Sections 2.1, 2.2 and 2.3 above, and shall provide Practice written notice of any change in such status, not less than 30 days prior to the effective date of such change.

2.9. Policies and Procedures. Physician agrees to abide by the policies and procedures set forth from time to time at the Practice’s Radiologist Portal, including those relating to network use and access, use and care of equipment, and operating procedures as may be revised by Practice from time to time.

2.10 Information Requirements; Privileges. In connection with the granting of VRP Privileges, Practice may request professional references from Physician and may require Physician to complete questionnaires or other documentation necessary for or related to VRP Privileges or Physician’s prospective Services. If Practice, in its sole judgment, is not satisfied with the information provided in such references, questionnaires or other documentation, Practice may, in its sole discretion, decline to grant VRP Privileges to Physician and terminate this Agreement.

2.11 Additional Information; References. Physician agrees to obtain annually a physical examination evidencing that Physician is not impaired from performing Services and to furnish the same to Practice’s Medical Director. Upon request by Practice, Physician shall obtain and thereafter maintain at least three cooperative personal references, and will obtain from time to time such additional personal or training references necessary for Physician to obtain Clinical Privileges. Practice will reasonably assist Physician to obtain the same.

3.1 Exclusive Billing. Practice shall bill for, collect from Practice’s customers and clients, and own all of the fees that are charged for Physician’s services and all related accounts receivable. Physician shall provide Practice, and at Practice’s request, its customers and clients with all information reasonably necessary to permit such billing in a timely and accurate manner. Physician shall be solely responsible for, and shall indemnify and hold Practice (and Practice’s clients) harmless from, any claims, liabilities and repayment obligations with respect to (a) the accuracy of Physician’s record of claims and (b) Physician’s compliance with federal and state laws (including but not limited to Medicare and Medicaid requirements) relating to the submission or assignment of such claims. Physician acknowledges and agrees that the right to bill and collect for Services shall be the exclusive right of Practice. Physician shall not bill Practice’s clients or their patients for Services provided.

3.2 Taxes; No Withholdings, Benefits. The Professional Fees set forth in this Agreement are inclusive of all applicable sales, use, gross receipts, excise, value-added, withholding, and other taxes that may be due based on Practice’s payments to Physician under this Agreement, all of which taxes shall be Physician’s sole obligation. Physician acknowledges and agrees that: (a) neither Practice nor any of Practice’s patients or clients will withhold on behalf of Physician pursuant to this Agreement any sums for income tax, unemployment insurance, social security or any other withholding pursuant to any law or requirement of any governmental body relating to Physician or make available to Physician any of the benefits afforded to employees of Practice or of Practice’s clients, and (b) all such withholdings and benefits, if any, are the sole responsibility of Physician.

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4.1 Patient Record and Patient Information. All patient records pertaining to professional services shall remain the property of Practice’s Customers or Clients. Practice agrees that it shall cause its Customers or Clients to obtain patient consents and patient authorizations necessary for Physician to receive orders, images and other information necessary for Physician to render a Report. Physician shall comply with all requirements of HIPAA, and applicable laws of any U.S. state or Territory relating to the privacy, security, and administration of patient health information. Physician agrees to enter into, and thereafter comply with, any business associate or confidentiality agreements reciting such obligations, including training sufficient for Physician to demonstrate proper use, as may be required by Clients to permit access to a Client’s network and patient information.

4.2 Access to Books and Records. Physician and Practice shall each maintain all records in a form and for the period of time required by applicable laws. Physician and Practice shall make available to authorized agents of the Secretary of Health and Human Services (or other governmental authority) this Agreement, any amendments to this Agreement, and any books, documents or records belonging to Physician or Practice and any related entity that may be necessary to verify the nature and extent of any payments made to Physician or Practice hereunder. Any such access shall be in accordance with the written regulations established by the Secretary of Health and Human Services to the extent required by law. In the event that Physician or Practice is requested to disclose any books, documents, or records for the purpose of an audit or investigation of Services delivered under this Agreement, Practice or Physician shall notify the other of the nature and scope of the request and shall make all books, documents, or records so disclosed available to the other upon written request.

5.2 Procedures for HIPAA Compliance. Physician shall comply with the procedures respecting use of Practice Equipment, including applicable HIPAA requirements, as are set forth at

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Practice’s Radiologist Portal. Physician shall not: (i) use the Practice Equipment for any purpose except the Provision of Services to Practice, or (ii) a utilize a network connection to provide services to third parties if that connection is being used for the provision of Services to, or for communication with Practice.

5.3 System Access. Practice will provide Physician with all necessary usernames and passwords to access studies for Clients who have granted Clinical Privileges.

6.1 Initial Term and Renewal. This Agreement shall have an initial term of two years from the Effective Date (the “Initial Period”). The Agreement shall automatically renew for subsequent one-year periods after the expiration of the Initial Period and each subsequent one year period (each a “Renewal Period”), unless earlier terminated pursuant to Section 6.2. The Initial Period and each Renewal Period, if any, are collectively referred to herein as the “Term.”

6.2 Termination; Suspension.

a. Termination Without Cause. Either party may terminate this Agreement without cause upon ninety (90) days prior written notice to the other.

b. Termination for Cause. Either party may terminate this Agreement for cause if the other party materially or repeatedly defaults in the performance of its obligations and has not cured such default within 30 days of receipt of a default notice specifying the default and the intention to terminate.

c. Automatic Suspension. Upon the occurrence of any of the following events, each of which shall constitute a ground for termination for cause, then, the provisions of Sections 1 of this Agreement shall be immediately suspended pending cure or termination in accordance with subparagraph b of this Section 6.2:

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d. Termination Coinciding with Termination of Physician’s Employment Agreement with Virtual Radiologic Corporation. Termination of Physician’s employment as Chief Executive officer of Virtual Radiologic Corporation for any reason shall cause this Agreement to terminate immediately. In that event, the parties hereto agree to negotiate in good faith over the terms of a new agreement between Physician and Practice; however, neither party is bound to enter into such a new agreement.

6.3 Consequences of Termination.

a. Return of Property and Confidential Information. In the event of termination for any reason, Physician shall return to Practice all property and Confidential Information (as defined in Section 8.1) received from Practice, Physician shall immediately cease using any passwords or other information provided by Practice for access to Practice’s or Practice Client’s information systems, and Physician shall return to Practice at Physician’s own expense the VR Workstation and any other equipment or software provided to Physician by Practice.

7.1 Professional Liability Coverage. Practice agrees to have and maintain a policy of professional liability insurance naming Physician as an additional insured with coverages of at least the amount of One Million Dollars ($1,000,000) per claim and Three Million Dollars ($3,000,000) in the aggregate annually (the “Insurance”). The Insurance shall cover Physician for malpractice claims made during the term of this Agreement, based on conduct alleged to have occurred based on Services provided during the Term. Such coverage will apply only to the practice of medicine performed for Practice and specifically excludes any other practice of medicine or professional services that the Physician may engage in outside the Agreement. Physician agrees not to disclose the name of Practice’s insurance provider or the details of Practice’s insurance policy to any third party entity without the written authorization from an officer of the Practice. Physician agrees to obtain separate insurance coverage for medical services outside the scope of this Agreement that physician may provide for or on behalf of any third party.

7.2 Tail Coverage. Upon termination of this Agreement, Practice shall maintain or purchase medical malpractice coverage for a period after termination of this Agreement (“Tail”) insuring against claims made relating to services performed by Physician during the term of this Agreement. If seven (7) years of Tail Coverage is not commercially available from Practice’s carrier, then Practice shall provide coverage for the maximum length of time that is commercially available under its group medical malpractice policy. Physician shall pay the cost of separate Tail Coverage purchased by Practice at Physician’s request.

7.3 Separate Insurance. Physician agrees to provide certificate(s) of insurance (or other proof of coverage) to Practice, upon its request, for all policies carried by Physician relating to the practice of medicine or any other professional services conducted by Physician outside of this Agreement, and agrees to provide Practice thirty (30) days prior written notice of any change in, or termination of, such separate coverage.

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8.1 Physician shall abide by the provisions relating to confidentiality and non-competition as are set forth is the separate Employment Agreement between Physician and Virtual Radiologic Corporation.

9.1 Disclaimer of Warranties. Except as otherwise expressly provided herein, all services or products provided by Practice are provided without warranty of any kind, whether express, implied or arising from custom, course of dealing or trade usage, any implied warranties of non-infringement, merchantability or fitness for a particular purpose.

9.2 Indemnification. Each party agrees to indemnify and hold the other harmless from any and all claims, liabilities, damages, taxes, fines, repayment obligations, or expenses, including court costs and reasonable attorney fees (collectively, “Claims”), arising from any act or omission by the indemnifying party or its employees or agents (excepting the indemnified party), or from the indemnifying party’s material breach of this Agreement. Without limiting the generality of the foregoing, Physician expressly agrees to indemnify and hold Practice harmless from any and all Claims arising from any other professional services provided by or on behalf of Physician or any other work Physician may engage in outside of this Agreement.

9.3 Limitation of Liability. Neither Practice nor Physician shall be liable for, nor shall any measure of damages include, any indirect, incidental, special, exemplary, punitive or consequential damages or amounts for loss of income, profits or savings, loss of data arising out of or relating to its performance or failure to perform under this Agreement, even if the party against whom liability is sought to be imposed has been advised of the possibility of such damages or loss; provided, however, that the limitations of liability set forth this paragraph shall not apply to (i) Practice’s failure to make payments to Physician for services rendered, (ii) Physician’s obligations set forth in Article 8, or (iii) the reciprocal obligations of indemnification set forth in Section 9.2.

10.1 Force Majeure. Neither party shall be responsible for any damages, delay in performance or failure to perform by Physician or Practice, if caused by any act or occurrence beyond its reasonable control such as embargoes, changes in government regulations or requirements (executive, legislative, judicial, military or otherwise), acts of war or terrorism, power failure, electrical surges or current fluctuations, lightning, earthquake, flood, the elements or other forces of nature, delays or failures of transportation, or acts or omissions of telecommunications common carriers. In particular, without limitation, neither Physician nor Practice shall be responsible for any interruption in Services caused by an interruption in or failure of Internet services. Physician recognizes that any such Internet or network outage if lasting more than a single 10 hour work shift may, if Practice scheduling allows, be credited against Physician’s vacation time or may otherwise result in a prorated reduction in the contract minimum cash payment to the Physician.

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10.2 Amendment. This Agreement may be amended only by a writing that is signed by both parties.

10.3 Assignment. Practice may, in its sole discretion, assign this Agreement to any entity that succeeds to some or all of the business of Practice through merger, consolidation, or sale of some or all of the assets of Practice, or any similar transaction. Physician acknowledges that the services to be rendered to Practice are unique and personal and therefore Physician may not assign any rights or obligations under this Agreement.

10.4 Successors and Assigns. Subject to Section 10.3, the provisions of this Agreement shall be binding upon the parties hereto, upon any successor or assign of Practice, and upon Physician’s heirs and the personal representative of Physician’s estate.

10.5 Waiver. Any waiver by either party of compliance with any provision of this Agreement shall not operate or be construed as a waiver of any other provision of this Agreement or of any subsequent breach by a party of the same or another provision of this Agreement. Any delay or failure by either Party to assert a right under this Agreement shall not constitute a waiver by said Party of any right hereunder, and either Party may subsequently assert all of its rights hereunder as if the delay or failure had not occurred. No waiver by Practice shall be valid unless in writing and signed by an authorized representative of Practice.

10.6 Severability. If any one or more of the provisions (or portions thereof) of this Agreement shall for any reason be held by a final determination of a court of competent jurisdiction to be invalid, illegal, or unenforceable in any respect, such invalidity, illegality, or unenforceability shall not affect any other provisions (or portions of the provisions) of this Agreement, and the invalid, illegal, or unenforceable provision shall be deemed replaced by a provision that is valid, legal, and enforceable and that comes closest to expressing the intention of the parties.

10.7 Governing Law, Arbitration. This Agreement shall be governed by and construed in accordance with the laws of the State of Minnesota without reference to the conflict of law provisions thereof. Any dispute, claim or controversy arising out of or related to this Agreement shall be resolved by binding arbitration by a single arbitrator in Minneapolis, Minnesota, in accordance with the Commercial Arbitration Rules of the American Arbitration Association then in effect. Judgment upon the arbitration award shall be final, binding and conclusive and may be entered in any court having jurisdiction. If for any reason Physician performs Services under this Agreement outside of the United States, Physician agrees to submit to the jurisdiction of, be accountable to, and remain in compliance with, all applicable state and federal law, rules, regulations or executive orders of any U.S. or foreign government, agency or authority, and accreditation authorities including but not limited to the American College of Radiology.

10.8 Counterparts. This Agreement may be executed by facsimile signature and by either of the parties in counterparts, each of which shall be deemed to be an original, but all such counterparts shall constitute a single instrument.

10.9 Notices. All notices, requests, or other communications hereunder shall be in writing and either transmitted via facsimile, overnight courier, hand delivery or registered mail, postage prepaid and return receipt requested, to the parties at the address listed below their respective signatures or such other addresses as may be specified by written notice. Notices shall be deemed to have been given when received or, if delivered by registered mail, five days after posting.

10.10 Equitable Relief. The parties acknowledge that their remedies at law for any breach or threatened breach of this Agreement may be inadequate. Therefore, a party shall be entitled to seek injunctive and other equitable relief restraining a party from violating this Agreement, in addition to any other remedies that may be available to it under this Agreement or applicable law.

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10.11 Entire Agreement. This Agreement, including any attached Exhibits, schedules and appendices (which are hereby incorporated into the Agreement), constitutes the entire agreement between the parties hereto with respect to its subject matter and there are no other representations, understandings or agreements between the Parties relating to such subject matter.

10.12 Services Provided Prior to Effective Date. Except with respect to compensation, the Parties acknowledge that any Services provided by Physician prior to the Effective Date of this Agreement are covered by the terms herein. Physician acknowledges that any compensation owed for Services performed prior to the Effective Date of this Agreement shall be covered, if at all, by separate agreement.

10.13 Survival. The provisions of this Section, Sections 2.4, 4, 6.3, 7.2, 8, 9 and 10 shall survive termination of this Agreement for any reason.

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IN WITNESS WHEREOF, the parties have executed this Agreement effective as of the Effective Date.

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EXHIBIT A

COMPENSATION AND COVERAGE PERIODS

Physician shall be compensated at the rate of $67,000 per year (“Base Compensation”) for services as President principal executive officer of Practice. Physician shall receive 1/12^th of Base Compensation per month no later than the 10^th business day of each month. If Physician provides services for less than the entire calendar month, payment will be prorated to reflect the total number of days worked at a rate reflecting the daily rate multiplied by the total number of days worked in that month.

Physician shall be eligible to receive additional compensation for radiologic interpretations for back-up or emergency situations in an amount not exceeding $10,000 per year calculated with respect to radiologic interpretations in accordance with the Practice’s standard formula for compensating independent physician contractors, which payments will be paid concurrently with the following month’s installment of Base Compensation. Physician may decline to perform radiologic interpretations is Physician determines in his sole judgment that the performance of such interpretations will unduly interfere with his performance of obligations as Chief Executive Officer of Virtual Radiologic Corporation.

Network Connection Reimbursement.

Practice shall periodically reimburse Physician for recurring expenses associated with Physician’s primary network connection used solely to provide Services under this Agreement. Practice shall make payment to Physician against Practice’s receipt of reasonable documentation supporting the amount requested. Practice shall not provide reimbursement for any portion of Physician’s secondary network connection.

Amounts reimbursable to Physician shall not exceed $250.00 per month.

Coverage Periods.

Physician shall be available on a back-up basis for emergency coverage requirements.

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EXHIBIT B

STATES

As of the date of this Agreement Physician holds a License to practice medicine in all 50 states, the District of Columbia and Puerto Rico.

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EXHIBIT C

Reporting Times

Physician will provide diagnostic reports as follows:

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