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Application of in-phase and out-of-phase imaging in the grading of gliomas
QU Yuan  ZHOU Lisui  WANG Yan  QUAN Guangnan 

Cite this article as: Qu Y, Zhou LS, Wang Y, et al. Application of in-phase and out-of-phase imaging in the grading of gliomas[J]. Chin J Magn Reson Imaging, 2022, 13(1): 103-105. DOI:10.12015/issn.1674-8034.2022.01.020.

[Abstract] Objective To evaluate the diagnostic value of in-phase and out-of-phase imaging in in grading gliomas.Materials and Methods: A total of 74 patients with glioma confirmed by pathology were retrospectively analyzed. All patient underwent contrast enhanced imaging and in-phase and out-of-phase before the operation. The signal loss ratio (SLR) of the solid part of the glioma was calculated on the in-phase and out-of-phase imaging. The difference of SLR between high-grade glioma (HGG) and low-grade glioma (LGG) was compared, and receiver operating characteristic (ROC) curve was used to evaluate the grading performance of SLR value.Results The SLR value of HGG was higher than that of LGG, which was statistically different (P<0.05). The area under curve (AUC) value of SLR to differentiate HGG and LGG was 0.895.Conclusions In-phase and out-of-phase imaging can help the grading of gliomas. It is simple and easy to implement, and has good clinical practical value.
[Keywords] glioma;grading;magnetic resonance imaging;in-phase and out-of-phase imaging;signal loss ratio

QU Yuan1   ZHOU Lisui2   WANG Yan1*   QUAN Guangnan3  

1 Department of MR, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China

2 Department of Radiology, Chengdu University Affiliated Hospital, Chengdu 610081, China

3 GE Healthcare China, Beijing 100176, China

Wang Y, E-mail:

Conflicts of interest   None.

Received  2021-07-15
Accepted  2021-12-17
DOI: 10.12015/issn.1674-8034.2022.01.020
Cite this article as: Qu Y, Zhou LS, Wang Y, et al. Application of in-phase and out-of-phase imaging in the grading of gliomas[J]. Chin J Magn Reson Imaging, 2022, 13(1): 103-105.DOI:10.12015/issn.1674-8034.2022.01.020

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