Relative value of three whole-body MR approaches for PET-MR, including gadofosveset-enhanced MR, in comparison to PET-CT

被引：1

作者：

Obara, Piotr ^{[1
]}

Loening, Andreas ^{[1
]}

Taviani, Valentina ^{[2
]}

Iagaru, Andrei ^{[1
]}

Hargreaves, Brian A. ^{[2
]}

Vasanawala, Shreyas ^{[1
]}

机构：

[1] Stanford Univ, 300 Pastuer Dr, Stanford, CA 94305 USA

[2] Stanford Univ, Lucas Ctr Imaging, 1201 Welch Rd, Stanford, CA 94305 USA

来源：

CLINICAL IMAGING | 2018年 / 48卷

关键词：

Pet-MR; Whole-body MRI; DWI; DIFFUSION-WEIGHTED SEQUENCE; F-18-FDG PET/MR; DIAGNOSTIC-VALUE; IMAGING DWI; FDG-PET/CT; CANCER; METASTASES; MALIGNANCIES; ONCOLOGY; FEASIBILITY;

D O I：

10.1016/j.clinimag.2017.09.016

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Purpose: Evaluate MR protocol for PET-MR including coronal DWI (cDWI), fat-suppressed T2 (T2w), and gadofosveset-enhanced T1 (CE). Materials and methods: 18 patients underwent same-day PET-CT and PET-MR. Image quality and performance of each sequence, and combination of all three sequences, was evaluated with respect to PET-CT. Results: Lesion conspicuity was best on cDWI, while delineation was best on CE. Considering all three sequences combined, both readers showed good sensitivity and specificity (> 80%). Relative sensitivity was highest on CE and lowest on T2w. Conclusions: Whole-body MR performed well in detecting malignant lesions compared to PET-CT. CE showed overall highest performance.

引用

页码：62 / 68

页数：7

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