ABSTRACT
Objective Diagnosis of contrast-enhanced ultrasound ( CEUS) for small focal liver lesions under the background of hepatocirrhosis has been a difficult problem in clinical practice .CEUS has significantly improved the accuracy of liver cancer diagno-sis, but little research has been done in minimal lesions .The article was to investigate the diagnostic value of CEUS in liver cirrhosis with small focal liver lesions (≤2 cm) . Methods 70 patients with cirrhosis and 76 small focal hepatic lesions who were admitted in our hospital from March 2015 to August 2015 were examined by conventional ultrasound and CEUS .Comparative analysis was made be-tween the results of tests and pathology to calculate the sensitivity , specificity and accuracy of CEUS and conventional ultrasound . Results The sensitivity , specificity and accuracy in diagnosing small hepatic cancer lesions complicated with cirrhosis by CEUS and conventional ultrasound were 47.6%、79.4%、61.8%and97.6%、97.1%、97.4%,respectively.CEUS was in high consistence with the results of pathology ( Kappa 0.947) and significantly higher than those of conventional ultrasound (Kappa 0.259). Conclusion CEUS has high application value in the differential diagnosis of small focal he-patic lesions complicated with cirrhosis .
ABSTRACT
Objective To compare the diagnostic values of US-guided optical imaging system (OPTIMUS) and full-field digital mammography (FFDM) in breast neoplasms. Methods Sixty-four patients suspected of breast neoplasms underwent OPTIMUS and FFDM before surgery. All patients were proved histopathologically. The accuracy of diagnosis was compared with chi-square test. Results Sixty-five masses were delineated by OPTIMUS and FFDM. The diagnostic accuracy, sensitivity and specificity of OPTIMUS were 86. 2% ( 56/65 ), 87.0% ( 20/23 ) and 85.7% ( 36/42 ), respectively. The positive likelihood ratio was 6. 09 and the negative likelihood ratio was 0. 175. The diagnostic accuracy, sensitivity and specificity of FFDM were 73.8% (48/65), 82. 6% ( 19/23 ) and 71.4% (30/42), respectively. The positive likelihood ratio was 2. 892 and the negative likelihood ratio was 0. 243. There were no significant differences between OPTIMUS and FFDM ( x2 = 3. 077 ,P ＞ 0. 05). Conclusion OPTIMUS is similar and supplementary to FFDM for the diagnosis of breast neoplasms.
ABSTRACT
Objective To assess the value of ultrasoud examination with transvaginal scaning(TVS) in the diagnosis of tubal pregnancy(TP). Methods 40 cases of clinically suspected TP were exeamined by two ultrasoud approaches: transvaginal and transabdominal prior to surgery.Based on surgery and pathology ,the sonographic manefestutions and diagonostic results of both methods were compared and analized statisticlly. Results The TP masses were visualized in 36 cases in TVS group(36/40) as compared with 27 cases in TAS group (27/40) (? 2=7.364, P