Meeting Banner
Abstract #3996

Comparison Between Whole-Body Coronal and Axial DWI Performed During PET-MR

Piotr Obara 1 , Valentina Taviani 1 , Andreas Loening 1 , Andrei Iagaru 1 , Brian Hargreaves 2 , and Shreyas Vasanawala 2

1 Radiology, Stanford Hospital, Stanford, California, United States, 2 Stanford Hospital, Stanford, California, United States

As the plane of acquisition in MRI can alter image quality and lesion detectability, we evaluated the preferred acquisition plane for diffusion-weighted imaging (DWI) acquired as a component of whole body PET-MR examinations. Two readers evaluated DWI images from PET-MR data sets acquired in coronal (cDWI) and axial (aDWI) planes. Ability to identify lesions was compared to PET-CT; both cDWI and aDWI demonstrated good sensitivity, however, specificity on a by-patient basis was low due to false positive findings in osseous structures and lymph nodes. Readers demonstrated less uncertainty regarding findings and rated image quality higher on cDWI images.

This abstract and the presentation materials are available to members only; a login is required.

Join Here