Comparision of SUVmax of TOF-PET/MR and TOF-PET/CT in body malignant tumor
10.13929/j.1003-3289.201705157
- VernacularTitle:TOF-PET/MR和TOF-PET/CT在体部恶性肿瘤SUVmax值的比较
- Author:
Tianbin SONG
;
Jie LU
;
Bixiao CUI
;
Jie MA
;
Hongwei YANG
;
Lei MA
;
Zhigang LIANG
- Keywords:
Time-of-flight;
Positron emission tomography,emission-computed;
Magnetic resonance imaging;
Tomography,X-ray computed;
Fluorodeoxyglucose;
Standardized uptake value
- From:
Chinese Journal of Medical Imaging Technology
2017;33(9):1401-1406
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the consistency of time-of-flight (TOF) technology of PET/MRI and PET/CT for max standardized uptake value (SUVmax) of body malignant tumors.Methods A retrospective analysis of TOF-PET/CT and TOF-PET/MR imaging data about twenty patients with body malignant tumors was performed.Patients were divided into two groups (each n=10),including PET/CT first and sequentially PET/MR group and PET/MR first and sequentially PET/CT group.Bland-Altman figure was used to evaluate consistency of SUVmax of malignant lesions between TOF-PET/CT and TOF-PET/MR.Multi-way ANOVA was used to analysis effect of machine type and exam order on SUVmaxof malignant lesions in TOF-PET/CT and TOF-PET/MR.Results SUVmax of malignant lesions in TOF-PET/CT and TOF-PET/MR had good consistency in two groups (PET/CT first and sequentially PET/MR group:Mean difference was 3.06,95％CI was [-7.5,13.6];PET/MR first and sequentially PET/CT group:Mean difference was 3.0,95％CI was [-2.4,8.3]).SUVmax was not influenced by machine type (F=0.005,P=0.95),but exam order (F=46.00,P＜0.001).Conclusion PET/MR and PET/CT with TOF technology have comparative diagnostic value in SUVmaxof body malignant lesions.SUVmax of body malignant lesions increases in delay time,which is not related to machine type,but exam time.
