Abstract #3883

Synthesized versus acquired high b-value (1200 s/mm2) diffusion-weighted magnetic resonance imaging for detection of peripheral zone lesions in the prostate using PI-RADS version 2

Stephanie T. Chang¹, Andreas M. Loening¹, and Shreyas S. Vasanawala¹

¹Radiology, Stanford University, Palo Alto, CA, United States

Greater diffusion weighting is generally thought to increase performance of MRI for prostate cancer detection. We compared acquired high b-value (1200 s/mm²) diffusion-weighted MRI against b-1200 images synthesized from b ≤ 800 acquisitions for detection of peripheral zone lesions in the prostate for 50 consecutive patients undergoing prostate MRI and biopsy using two blinded independent readers. Although subjective image quality was rated slightly but significantly worse for synthesized DWI compared to acquired DWI images, no significant difference in detection of peripheral zone lesions, PI-RADS version 2 lesion categorization, or confidence scores of interpretation were observed.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.