高磁場強度核磁共振儀對於經會陰磁振超音波影像融合前列腺切片之比較

蔡秉軒、蔡曜州

臺北慈濟醫院 外科部 泌尿科

Detectability of prostate cancer using 3-Tesla Magnetic Resonance Imaging during Transperineal fusion prostate biopsy

Pin-Hsuan Tsai, Yao-Chou Tsai

Divisions of Urology, Department of Surgery, Taipei Tzu Chi Hospital, New Taipei, Taiwan

Purpose: We investigate the potential benefit of utilizing 3-Tesla Magnetic Resonance Imaging during Transperineal MRI-ultrasound fusion prostate biopsy.

Materials and Methods: A total 64 male patients with suspicious prostate cancer who had received Transperineal MRI-ultrasound fusion prostate biopsy were enrolled. We analyzed the detection rate of prostate cancer using Chi-square test and independent sample t-tests. We also figure out the cutoff point of the main lesion length favorable for software-assisted fusion prostate biopsy with independent sample t-tests.

Results: There was significant difference in the detection rate of malignant cores between the patients receiving 3-TESLA MRI and 1.5-TESLA MRI. (p<0.05). However, no statistically significant difference of clinical prostate cancer detection rate was found between the previously mentioned two groups. Software-assisted fusion biopsy was a statistically preferable method compared to cognitive fusion biopsy for patients whose largest length of main lesion noticed on MRI was below 1.3cm.

Conclusions:

3-TESLA MRI was associated with better detection of suspicious prostate neoplasms noticed in exam, and correlated with a higher detection rate of malignant cores. 1.3 cm may be a suitable cutoff point favorable for software-assisted fusion prostate biopsy.