CARCINOMA OF THE PROSTATE-GLAND - MR-IMAGING WITH PELVIC PHASED-ARRAY COILS VERSUS INTEGRATED ENDORECTAL PELVIC PHASED-ARRAY COILS
CARCINOMA OF THE PROSTATE-GLAND - MR-IMAGING WITH PELVIC PHASED-ARRAY COILS VERSUS INTEGRATED ENDORECTAL PELVIC PHASED-ARRAY COILS
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DOI：
10.1148/radiology.193.3.7972810
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发表时间：
1994-12-01
期刊：
影响因子：
19.7
通讯作者：
CARROLL, PR
中科院分区：
文献类型：
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作者：
HRICAK, H;WHITE, S;CARROLL, PR
目得：为了比较盆腔相控阵（PPA）线圈和内线圈的性能，材料和方法：71名男性在根治性直肠癌切除术后3周内接受了磁共振（MR）成像。肿瘤，囊外扩张，精囊浸润，淋巴结受累和分期的MR表现与阶梯切片（间隔34 mm）的整体病理标本进行了比较。比较了前瞻性共识与单读片者解读（kappa统计）以及PPA与集成直肠内PPA线圈（McNemar检验），并开发了1-6级评定量表用于分析受试者操作特征。统计学显著性计算在delta = 0.05。结果：共识和单一阅读者之间的比较显示了积极的，但一致性差（kappa = 0.38），没有统计学意义。一体化直肠内PPA线圈的分期准确性（77%）优于PPA线圈（68%）（差异接近显著性）。结论：一体化直肠内PPA线圈比PPA线圈更适合于评估局部前列腺癌。
PURPOSE: To compare the performance of pelvic phased-array (PPA) coils and intMATERIALS AND METHODS: Seventy-one men underwent magnetic resonance (MR) imaging within 3 weeks of radical prostatectomy. MR findings of tumor, extracapsular extension, seminal vesicle invasion, nodal involvement, and stage were compared with step-sectioned (34-mm intervals) whole-mounted pathologic specimens. Prospective consensus versus single-reader interpretation (kappa statistics) and PPA versus integrated endorectal PPA coils (McNemar test) were compared, and a rating scale of 1-6 was developed for analysis of receiver operating characteristics. Statistical significance was calculated at delta = .05.RESULTS: Comparison between consensus and single-reader image interpretation showed positive but poor agreement (kappa = .38) and no statistical significance. Staging accuracy was better (difference approached significance) for integrated endorectal PPA coils (77%) than for PPA coils (68%).CONCLUSION: The integrated endorectal PPA coil is better for evaluation of local prostatic cancer than is the PPA coil.