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Difference of MRI characteristics and HIFU related parameters of four subtypes of adenomyosis
ZHONG Yuqing  LIU Yang  HU Yan  LIU Yuhang  LÜ Fajin 

Cite this article as: Zhong YQ, Liu Y, Hu Y, et al. Difference of MRI characteristics and HIFU related parameters of four subtypes of adenomyosis[J]. Chin J Magn Reson Imaging, 2022, 13(9): 95-99. DOI:10.12015/issn.1674-8034.2022.09.018.


[Abstract] Objective To explore the differences of MRI characteristics and relevant parameters of high intensity focused ultrasound therapy of the four subtypes of adenomyosis based on magnetic.Materials and Methods A tatal of 203 cases with adenomyosis treated by high intensity focused ultrasound (HIFU) were retrospectively analyzed. According to the location relationship between the adenomyosis focus, the uterine junction zone and the endometrium shown by T2 weighted imaging (T2WI), the adenomyosis was divided into 43 cases of type Ⅰ (intrinsic), 48 cases of type Ⅱ (extrinsic), 29 cases of type Ⅲ (intrinsic) and 83 cases of type Ⅳ (intrinsic). The clinical data, preoperative MRI characteristics and postoperative treatment parameters of different subtypes were compared.Results The energy efficiency factor (EEF) of the four subtypes were 2.02, 3.18, 1.88, and 3.50 J/mm3 respectively. The nonperfused volume ration (NPVR) of the four subtypes were 47.78%, 39.98%, 88.57%, and 32.47% respectively. The differences of EEF and NPVR of the four subtypes were statistically significant (P＜0.05). The differences of abortion history, fertility history and MRI characteristics of the four subtypes were statistically significant (P＜0.05), and the differences of treatment time, irradiation time,irradiation dose, lesion volume and ablation volume of the four subtypes after HIFU ablation were statistically significant (P＜0.05).Conclusions The difference of NPVR and EEF among the four subtypes after HIFU ablation was statistically significant (P＜0.05). Therefore, this classification based on pathology and MRI is helpful for clinical preoperative decision-making.
[Keywords] adenomyosis；high intensity focused ultrasound；magnetic resonance imaging；nonperfused volume ration；energy efficiency factor

ZHONG Yuqing1   LIU Yang1, 2   HU Yan1   LIU Yuhang2   LÜ Fajin1, 2*  

1 State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China

2 Department of Radiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China

*Lü FJ, E-mail: fajinlv@163.com

Conflicts of interest   None.

Received  2022-05-30
Accepted  2022-09-07
DOI: 10.12015/issn.1674-8034.2022.09.018
Cite this article as: Zhong YQ, Liu Y, Hu Y, et al. Difference of MRI characteristics and HIFU related parameters of four subtypes of adenomyosis[J]. Chin J Magn Reson Imaging, 2022, 13(9): 95-99. DOI:10.12015/issn.1674-8034.2022.09.018.

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