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US-guided diffused optical tomography: a promising functional imaging technique in breast lesions.

Abstract：

OBJECTIVE:To investigate the feasibility and clinical efficacy of ultrasound (US)-guided diffused optical tomography (DOT) in differentiating malignant breast lesions from benign lesions. MATERIAL AND METHODS:From October 2007 to August 2008, 198 women with 214 lesions scheduled for open biopsy were included in this study. Conventional US was used to locate the breast lesion, and DOT to measure the total haemoglobin concentration (THC) for each breast lesion. Sensitivity, specificity and overall accuracy were determined with surgical pathology as the gold standard. RESULTS:There were 96 benign lesions and 118 malignant lesions. The total haemoglobin concentration (THC) of all 214 lesions was calculated from DOT. The average THC in benign lesions was 125.5 +/- 83.4 micromol/L, and in malignant lesions 222.2 +/- 87.2 micromol/L. The THC of malignant lesions was significantly higher than that of benign lesions (p < 0.05). When a THC of 140 micromol/L was used as the cutoff value for differentiating breast cancer from benign lesions, the sensitivity, specificity, accuracy, positive predictive value and negative predictive value of DOT were 83.9%, 66.7%, 76.2%, 75.6% and 77.1%, respectively. Our study demonstrated that THC was significantly higher in malignant lesions than in benign lesions. CONCLUSION:US-guided diffused optical tomography, a noninvasive functional imaging technique, has potential utility in differentiating breast cancer from benign lesions.

journal_name

Eur Radiol

journal_title

European radiology

authors

You SS,Jiang YX,Zhu QL,Liu JB,Zhang J,Dai Q,Liu H,Sun Q

doi

10.1007/s00330-009-1551-y

subject

Has Abstract

pub_date

2010-02-01 00:00:00

pages

309-17

issue

2

eissn

0938-7994

issn

1432-1084

journal_volume

20

pub_type

杂志文章

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