DATE OF EXECUTION OF LEASE:

November 1, 2002

LANDLORD:

CTI Molecular Imaging, Inc. a Delaware corporation

LANDLORD'S ADDRESS FOR RENT AND NOTICES:

810 Innovation Drive  Knoxville, Tennessee 37932

TENANT:

CTI PET Systems, Inc. a Tennessee corporation

TENANT'S ADDRESS FOR NOTICES:

810 Innovation Drive

Knoxville, Tennessee 37932

LAND:

The Land described on EXHIBIT A hereto.

DEMISED PREMISES:

The portion of the buildings, structures and improvements located upon the Land (the "BUILDINGS") occupied from time to time by Tenant, and the nonexclusive right to occupy and use Common Areas, as described on EXHIBIT B hereto.

TENANT'S PRO RATA SHARE:

The number of square feet occupied by Tenant divided by the total space in the Buildings. As of the Commencement Date, the total space in the Buildings will be 277,007 square feet. Upon completion of the additional mezzanine space in Buildings 2 and 3 at 810 Innovation Drive the total space will be 290,007 square feet.

COMMENCEMENT DATE:

January 1, 2003.

EXPIRATION DATE:

December 31, 2012.

TERM:

Ten years.

RENEWAL TERM:

Two successive terms for five years each.

BASIC RENT:

Eleven dollars ($11.00) per square foot per year for office space, and eight dollars ($8.00) per square foot per year for manufacturing space, and four dollars ($4.00) per square foot per year for warehouse space at 10516 Lexington Drive plus Tenant's Pro Rata Share of eleven dollars ($11.00) per square foot per year for Common Areas of the Building, from the Commencement Date until the Expiration Date, subject to adjustment pursuant to SECTION 3.4.

BASIC RENT ADJUSTMENT:

Increase by 100% of increase in Consumer Price Index increase, not to exceed 3% per year, at the end of years 3,6 and 9, as provided in SECTION 3.5.

CPI DATES:

The end of the month during which the expiration of three, six and nine years from the Commencement Date occurs.

BUSINESS DAY:

A day on which banks in Knoxville, Tennessee are opened for business.