PMID- 31799866 OWN - NLM STAT- MEDLINE DCOM- 20200427 LR - 20200427 IS - 1546-3141 (Electronic) IS - 0361-803X (Linking) VI - 214 IP - 2 DP - 2020 Feb TI - Diagnostic Value of Whole-Body DWI With Background Body Suppression Plus Calculation of Apparent Diffusion Coefficient at 3 T Versus (18)F-FDG PET/CT for Detection of Bone Metastases. PG - 446-454 LID - 10.2214/AJR.19.21656 [doi] AB - OBJECTIVE. The purpose of this study is to evaluate the diagnostic performance of whole-body (WB) DWI with background body suppression (DWIBS) combined with calculation of the apparent diffusion coefficient (ADC) value at 3 T compared with the diagnostic performance of (18)F-FDG PET/CT for detecting bone metastases in patients with malignant tumors. SUBJECTS AND METHODS. Thirty-nine consecutive patients with suspected bone metastases underwent both WB DWIBS and FDG PET/CT. Imaging findings were independently interpreted using qualitative and quantitative analyses. Pathologic findings or clinical or radiologic follow-up data were used as the diagnostic reference standard. The sensitivity, specificity, overall accuracy, positive predictive value, and negative predictive value of both modalities were calculated. The ADCs of benign lesions and metastases were compared. RESULTS. A total of 213 metastatic bone segments were confirmed among 39 patients. The sensitivity, specificity, overall accuracy, positive predictive value, and negative predictive value were 93.0%, 87.8%, 89.6%, 79.8%, and 96.0%, respectively, for WB DWIBS and 92.5%, 92.0%, 92.1%, 85.7% and 95.9%, respectively, for FDG PET/CT. The specificity of WB DWIBS in detecting bone metastases was significantly lower than that of FDG PET/CT (p < 0.05), whereas the sensitivity, overall accuracy, positive predictive value, and negative predictive value in detecting bone metastases were not significantly different between WB DWIBS and FDG PET/CT (p > 0.05). The ADCs for benign lesions were significantly higher than those for metastases (p < 0.001). In ROC curve analysis, the AUC value was 0.901. A cutoff ADC value of 920.5 x 10(-6) mm(2)s(-1) distinguished benign lesions from bone metastases with a sensitivity of 92.9% and a specificity of 73.4%. CONCLUSION. WB DWIBS coupled with ADC analysis at 3 T is effective for detecting bone metastases. FAU - Sun, Wenping AU - Sun W AD - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600, Yishan Rd, Shanghai, 200233, China. FAU - Li, Mei AU - Li M AD - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600, Yishan Rd, Shanghai, 200233, China. FAU - Gu, Yifeng AU - Gu Y AD - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600, Yishan Rd, Shanghai, 200233, China. FAU - Sun, Zhenkui AU - Sun Z AD - Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. FAU - Qiu, Zhongling AU - Qiu Z AD - Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. FAU - Zhou, Yiyi AU - Zhou Y AD - Department of Internal Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191204 PL - United States TA - AJR Am J Roentgenol JT - AJR. American journal of roentgenology JID - 7708173 RN - 0 (Radiopharmaceuticals) RN - 0Z5B2CJX4D (Fluorodeoxyglucose F18) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Bone Neoplasms/*diagnostic imaging/*secondary MH - Diffusion Magnetic Resonance Imaging/*methods MH - Female MH - Fluorodeoxyglucose F18 MH - Humans MH - Male MH - Middle Aged MH - Positron Emission Tomography Computed Tomography/*methods MH - Predictive Value of Tests MH - Radiopharmaceuticals MH - Sensitivity and Specificity MH - Whole Body Imaging/*methods OTO - NOTNLM OT - 18F-FDG PET/CT OT - DWI OT - apparent diffusion coefficient OT - bone metastasis OT - whole-body MRI EDAT- 2019/12/05 06:00 MHDA- 2020/04/28 06:00 CRDT- 2019/12/05 06:00 PHST- 2019/12/05 06:00 [pubmed] PHST- 2020/04/28 06:00 [medline] PHST- 2019/12/05 06:00 [entrez] AID - 10.2214/AJR.19.21656 [doi] PST - ppublish SO - AJR Am J Roentgenol. 2020 Feb;214(2):446-454. doi: 10.2214/AJR.19.21656. Epub 2019 Dec 4.