自動(dòng)乳腺全容積成像技術(shù)診斷乳腺病變
[Abstract]:Part one: comparison of diagnostic value of ABVS and HHUS in differential diagnosis of benign and malignant breast lesions objective to compare the diagnostic value of automatic full volume imaging (ABVS) and conventional ultrasound in benign and malignant breast lesions. Methods the sensitivity, specificity, correctness, positive predictive value and negative predictive value of automatic full volume mammography (ABVS) and conventional ultrasound were calculated in a prospective study of 239 breast lesions. The diagnostic accuracy was further classified according to the size of the lesion. Results of 239 breast lesions, 154 (64.4%) were benign, 85 (35.6%) malignant. ABVS was compared with conventional ultrasound in the diagnosis of breast lesions: sensitivity (95.3vs.90.6%), specificity (80.5vs.82.5%), accuracy (85.8vs.85.3%), positive predictive value (73.0vs.74.0%), negative predictive value (93.3vs.94.1%). The areas under the ROC curve were 0.948 and 0.928 respectively. Conclusion although there is no significant difference between ABVS and HHUS in the diagnosis of breast lesions, ABVS can provide new diagnostic information. And more clearly display catheter lesions. ABVS has a good clinical application prospects. Part 2: Inter-observer consistency of ABVS ultrasound images of breast lesions objective to evaluate retrospectively the terms specific to the use of three-dimensional breast ultrasound by ultrasound doctors and the Ultrasound Breast Imaging reporting and data system (BI-RADS) Description and diagnosis of automatic mammary volume technique (ABVS) ultrasound images are consistent among observers. Methods informed consent was provided. 208 patients underwent ABVS examination in supine position from August to December 2010. The data were automatically stored in ultrasound images of 234 breast lesions (148 benign lesions and 86 malignant lesions confirmed by pathology) by retrospective and independent assessment of 234 breast lesions on ABVS workstation by 2. 2 ultrasound doctors through ABVS workstation. Observers do not know molybdenum target images, history, and pathological results. The differences between observers were assessed by Cohen's kappa statistic. Results the consistency among the observers was as follows: the peripheral echo of the lesion was 0.42, the collation sign was 0.54, the shape was 0.79, the aspect ratio was 0.74, the margin was 0.76, the echo was 0.69, the posterior echo was 0.68, the calcification was 0.71, and the final diagnosis was good (魏 0.70). Conclusion the evaluation of breast lesions obtained by ABVS is reproducible, but the echo around the lesions and coronal section is of moderate consistency.
【學(xué)位授予單位】:北京協(xié)和醫(yī)學(xué)院
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2012
【分類(lèi)號(hào)】:R816.4
【共引文獻(xiàn)】
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