经直肠线圈前列腺MRI在检测前列腺癌患者精囊受累情况中的价值。
The value of prostate MRI with endorectal coil in detecting seminal vesicle involvement in patients with prostate cancer.
作者信息
Ghafoori Mahyar, Alavi Manijeh, Shakiba Madjid, Hoseini Kamal
机构信息
Department of Radiology, Hazrat Rasoul Akram Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran ; Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran.
Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran.
出版信息
Iran J Radiol. 2015 Jan 17;12(1):e14556. doi: 10.5812/iranjradiol.14556. eCollection 2015 Jan.
BACKGROUND
In prostate cancer, detection of seminal vesicle involvement is important because it influences the treatment planning and prognosis of the patients.
OBJECTIVES
The objective of this study was to determine the value of prostate MRI with endorectal coil in the detection of seminal vesicle involvement in patients with prostate cancer.
PATIENTS AND METHODS
A total number of 238 biopsy-proven prostate cancer patients were examined by 1.5 Tesla MRI with a combination of pelvic and endorectal coils to detect seminal vesicle involvement. After radical prostatectomy, the MRI results were compared with pathology results.
RESULTS
Seminal vesicle involvement was detected in 67 (28.1%) patients. Pathology confirmed the involvement of seminal vesicles by prostate cancer in 63 patients. In two patients, seminal vesicle involvement was diagnosed by pathology but not detected by MRI. The sensitivity was 0.97 [95% confidence interval = 0.89-0.99], the specificity was 0.98 [95% confidence interval = 0.94-0.99], the positive predictive value was 0.94 [95% confidence interval = 0.85-0.98], and the negative predictive value was 0.99 [95% confidence interval = 0.96-0.99].
CONCLUSIONS
MRI with endorectal coil is a valuable imaging technique with suitable accuracy in detecting seminal vesicle involvement in prostate cancer.
背景
在前列腺癌中，检测精囊是否受累很重要，因为它会影响患者的治疗规划和预后。
目的
本研究的目的是确定使用直肠内线圈的前列腺MRI在检测前列腺癌患者精囊受累情况中的价值。
患者和方法
共有238例经活检证实的前列腺癌患者接受了1.5特斯拉MRI检查，使用盆腔线圈和直肠内线圈组合以检测精囊受累情况。根治性前列腺切除术后，将MRI结果与病理结果进行比较。
结果
67例（28.1%）患者检测到精囊受累。病理证实63例患者的精囊受前列腺癌侵犯。2例患者病理诊断为精囊受累，但MRI未检测到。敏感性为0.97[95%置信区间=0.89-0.99]，特异性为0.98[95%置信区间=0.94-0.99]，阳性预测值为0.94[95%置信区间=0.85-0.98]，阴性预测值为0.99[95%置信区间=0.96-0.99]。
结论
使用直肠内线圈的MRI是一种有价值的成像技术，在检测前列腺癌精囊受累情况方面具有合适的准确性。
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