Abstract #2674

HR-DWI with Super-Resolution DLR vs. Conventional DWI: Scan Time, Image Quality and Diagnostic Performance in Hepato-Pancreato-Biliary Tumors

Takeshi Yoshikawa¹, Kaori Yamamoto², Yuichiro Sano², Masato Ikedo², Masanori Ozaki², Masao Yui², Hiroyuki Nagata³, Takahiro Ueda¹, Masahiko Nomura¹, Daisuke Takenaka¹, Yoshiyuki Ozawa¹, and Yoshiharu Ohno^1,3

¹Diagnostic Radiology, Fujita Health University School of Medicine, Toyoake, Japan, ²Canon Medical Systems Corporation, Otawara, Japan, ³Joint Research Laboratory of Advanced Medical Imaging, Fujita Health University School of Medicine, Toyoake, Japan

Synopsis

Keywords: Cancer, AI/ML Image Reconstruction, Deep learning Reconstruction, Diffusion

Motivation: Super-resolution deep learning reconstruction (SR-DLR) improves image quality and differentiation capability of hepato-pancreato-biliary (HPB) tumors on high-resolution diffusion-weighted imaging (HR-DWIs) obtained with different NEXs as compared with conventional diffusion-weighted imaging (cDWI).

Goal(s): The goal was to compare capability of SR-DLR for improving image quality and HPB tumor differentiation among cDWI and HR-DWIs with different NEXs.

Approach: This clinical study obtained cDWI and HR-DWIs , and diagnostic performance was statistically compared among all DWIs.

Results: Specificities and accuracies of HR-DWIs with 1, 3 or 5 NEXs were significantly higher than those of cDWI (p<0.05).

Impact: SR-DLR had superior potential for acquisition time reduction with image quality and diagnostic capability improvements on HR-DWI, when compared with cDWI. When applied SR-DLR for HR-DWI, 3 NEX would be better to be applied in this setting.

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.