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Chinese Journal of Medical Imaging Technology ; (12): 573-576, 2018.
Article in Chinese | WPRIM | ID: wpr-706284


Objective To explore the diagnostic value of ultrasonography in diagnosing deep infiltrating endometriosis (DIE) with involvement of pelvic tissues.Methods Data of 118 DIE patients confirmed with surgery and pathology who underwent transvaginal ultrasonography before surgery were retrospectively analyzed.Taking surgical and pathologic findings as the gold standards,the sensitivity,specificity,positive predictive value (PPV) and negative predictive value (NPV) of ultrasonography in diagnosis of DIE with involvement of uterosacral ligament,intestine,vaginal rectal septum,vagina,bladder and ureter were calculated,respectively.Results Uterosacral ligament involvement was found in 85 patients,with sensitivity of 95.29% (81/85) and specificity of 90.91% (30/33).Intestinal involvement was observed in 60 patients,with sensitivity of 98.33% (59/60) and specificity of 91.38% (53/58).Vaginal rectal septum involvement was noticed in 39 patients,with sensitivity of 79.49% (31/39) and specificity of 92.41% (73/79).Vaginal involvement was detected in 18 patients,with sensitivity of 55.56 % (10/18) and specificity of 96.00 % (96/100).Bladder involvementwas found in 17 patients,with sensitivity of 76.47% (13/17) and specificity of 94.06% (95/101).Ureter involvement was also found in 9 patients,with sensitivity of 100% (9/9) and specificity of 99.08% (108/109).Conclusion Transvagina ultrasonography has great value in diagnosis of DIE with involvement of pelvic tissues.

Chinese Journal of Ultrasonography ; (12): 439-441, 2012.
Article in Chinese | WPRIM | ID: wpr-425731


ObjectiveTo evaluate the accuracy of the modalities in revealing the results by observing the radiofrequency ablated (RFA) lesions with contrast-enhanced ultrasonography (CEUS),magnetic resonance image (MRI) in comparison with histopathologic findings in normal rabbit kidney.Methods RFA was performed in the left kidneys of 10 rabbits.The ablated lesions were observed with conventional ultrasound(US),CEUS,MRI at 1 day,1 week after RFA.Then the rabbits subjected to postmortem and the kidney specimens were excised,stained and processed for conventional histologic study.The maximum lesion size as measured on US,CEUS and MRI was then correlated with the histopathologically determined lesion size.The utility of different imaging modalities were evaluated.ResultsIn a relatively short time (at 1 day and 1 week),CEUS and MRI may reveal the location,shape and extent of ablated lesion.And the lesion sizes with CEUS,MRI and kidney specimens were well correlated (P>0.05).ConclusionsBoth CEUS and MRI are suitable for the accurate evaluation of the ablated lesions in the short time.CEUS can reveal the variation of flow perfusion in the ablated lesion dynamicly and in real time.