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1.5T Prostate - Kumamoto Chuo Hospital

Katahira, Kazuhiro, M.D. Kumamoto Chuo Hospital

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ExamCard purpose

This ExamCard is for evaluation of lesions in the prostate.

It includes a DWIBS sequence.


ExamCard overview

Scan 1Survey
Scan 2Ref/Cardiac
Scan 3T2W/COR/FS
Scan 4T2W/TSE/F07
Scan 5DWI/b-1000
Scan 6DWI/b-2000 / SPAIR
Scan 8T1W/TRA
Scan 9T1W/COR
Scan 10Dynamic (ax) THRIVE SENSE
Scan 11RPP Prostate


T2-Weighted Fused
These are a T2-weighted axial image centered on the prostate and the fused T2-weighted and DWI image. On the T2-weighted image there are two hypointense regions in the inner zone. DWI enables determination of one as BPH, while the other is malignant, both confirmed by histology. Since introduction of the Philips prostate T2W+DWI protocols for prostate imaging at Kumamoto Chuo, the use of contrast agent has been discontinued, resulting in cost savings.



T2-weighted DWI b=1000 DWI b=2000
DWI b=1000
DWI b=2000


On the T2-weighted axial image of the prostate, diagnosis is fairly difficult. However, using DWI making the diagnosis can be more definitive, as confirmed on the histology. Note that a b-value of 2000 affords clearly better contrast than a b-value of 1000.

Patient preparation

The SENSE Cardiac coil is used.

Contrast agent / injection protocol

Contrast agent is injected before the dynamic scan.

Post-processing / analysis

The DWIBS diffusion-weighted sequence with SPIR fat suppression can be fused with standard MRI images to enable easier evaluation of the images.


Thanks to the exceptional contrast-to-noise ratio of DWIBS, even relatively small lesions can be seen with DWIBS, although spatial resolution is lower than in the high resolution anatomical images.



For more information, see:

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Sep 26, 2006

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Achieva 1.5T
Release 1, Release 2
Abdomen, Body, Oncology, Prostate

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