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• Clinical Article •
Evaluation of computer tomography and magnetic resonance imaging in the classification and viability of hepatic cystic echinococcosis
LI Ting  BAO Haihua 

Cite this article as: LI T, Bao HH. Evaluation of computer tomography and magnetic resonance imaging in the classification and viability of hepatic cystic echinococcosis[J]. Chin J Magn Reson Imaging, 2021, 12(5): 25-29. DOI:10.12015/issn.1674-8034.2021.05.006.


[Abstract] Objective We aimed to explore the value of CT and apparent diffusion coefficient (ADC) in the classification and viability of hepatic cystic echinococcosis (HCE). Materials andMethods A total of 181 HCE patients with 227 hydatids confirmed by surgery and pathology were admitted in hospital from January 2016 to December 2019. All patients experienced preoperative CT and MRI scans, and CT and ADC values of hydatid fluid were measured and analyzed. The differences and correlations among the types were compared through variance analysis and rank correlation test.Results According to WHO classification, cyst fluid in 51 lesions of CE1 type, 47 lesions of CE2 type, 50 lesions of CE3 type, 52 lesions of CE4 type and 27 lesions of CE5 type were measured. The mean CT and ADC values of the 5 types of cystic lesions were: CE1 (4.79±1.70) HU and (3.25±0.31)×10-3 mm2/s, CE2 (6.02±2.53) HU and (3.18±0.15)×10-3 mm2/s, CE3 (22.96±4.82) HU and (2.57±0.25)×10-3 mm2/s, CE4 (35.30±17.80) HU and (2.40±0.12)×10-3 mm2/s, and CE5 (108.77±51.02) HU and (2.13±0.68)×10-3 mm2/s, respectively. The CT values of CE3, CE4 and CE5 were significantly higher than those in CE1 and CE2 (P＜0.05). The ADC values of CE1, CE2, CE4 and CE5 were statistically different in pairwise comparison (P＜0.05). CT value and ADC value were obviously and negatively correlated (r=-0.835).Conclusions CT value and ADC value were used as quantitative indicators to more accurately diagnose the activity of various lesions. CT and ADC values could be valuable imaging biomarkers for the viability of HCE, and it can provide some reference for the formulation of clinical operation plan.
[Keywords] hepatic cystic echinococcosis；attenuation value of computerized tomography；apparent diffusion coefficient；classification；viability；magnetic resonance imaging

LI Ting   BAO Haihua*  

Image Center of Affiliated Hospital of Qinghai University, Xining 810000, China

Bao HH, E-mail: baohelen2@sina.com

Conflicts of interest   None.

ACKNOWLEDGMENTS This work was part of Science and Technology Program of Qinghai Science and Technology Department (No. 2017-SF-158).
Received  2020-12-08
Accepted  2021-03-25
DOI: 10.12015/issn.1674-8034.2021.05.006
Cite this article as: LI T, Bao HH. Evaluation of computer tomography and magnetic resonance imaging in the classification and viability of hepatic cystic echinococcosis[J]. Chin J Magn Reson Imaging, 2021, 12(5): 25-29. DOI:10.12015/issn.1674-8034.2021.05.006.

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