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06:08
A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound
Published on: March 21, 2025
Computed diffusion-weighted imaging using 3-T magnetic resonance imaging for prostate cancer diagnosis
Yoshiko Ueno1, Satoru Takahashi, Kazuhiro Kitajima
1Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan, yonu0121@yahoo.co.jp.
European Radiology
|July 25, 2013
Summary
Computed diffusion-weighted images (cDWIs) show promise for prostate cancer diagnosis. Generated cDWIs at b=2000 s/mm² (cDWI2000) are effective, matching measured DWIs (mDWI2000) and outperforming lower b-value DWIs (mDWI1000).
Area of Science:
- Radiology
- Medical Imaging
- Oncology
Background:
- Prostate cancer (PCa) diagnosis relies on MRI.
- Diffusion-weighted imaging (DWI) is crucial for PCa detection.
- Optimizing DWI protocols can improve diagnostic accuracy.
Purpose of the Study:
- To evaluate the diagnostic efficacy of computed DWI (cDWI2000) for PCa.
- To compare cDWI2000 with measured DWI at b=1000 (mDWI1000) and b=2000 (mDWI2000).
- To assess performance using 3-T MRI.
Main Methods:
- Eighty patients undergoing preoperative MRI were included.
- T2WI and DWI (b=0, 1000, 2000 s/mm²) were acquired.
- Four protocols were assessed: T2WI alone, T2WI+mDWI1000, T2WI+mDWI2000, and T2WI+cDWI2000.
Main Results:
- cDWI2000 yielded the highest contrast ratio (CR).
- Protocol C (T2WI+mDWI2000) and D (T2WI+cDWI2000) showed significantly higher specificity and accuracy than Protocol B (T2WI+mDWI1000).
- Protocol D achieved an area under the ROC curve (Az) of 0.84, with 83.2% sensitivity and 70.0% specificity.
Conclusions:
- Computed DWI (cDWI2000) is effective for PCa diagnosis.
- cDWI2000 demonstrates comparable or superior performance to measured DWI.
- This technique offers a valuable tool for improving PCa detection on MRI.
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