Diagnostic Accuracy of Quantitative Scintimammography Using Tc-99m Tetrofosmin according to ROC Curve Analysis for Breast Cancer.
10.4048/jkbcs.2004.7.1.49
- Author:
Sang Hyun PARK
1
;
Heung Gyu PARK
;
Sang Hoon HAN
;
Young Don LEE
;
Min JUNG
;
Tae Hoon LEE
;
Jae Hwan OH
;
Jung Nam LEE
;
Woon Khi LEE
;
Yeon Ho PARK
;
Seung Kee MIN
;
Jeong Heum BAEK
;
Jong Ho KIM
;
Kyung Hoon HWANG
Author Information
1. Department of Surgery, Gachon Medical School, Gil Medical Center, Incheon, Korea. gs@ghil.com
- Publication Type:Original Article
- Keywords:
Tc-99m Tetrofosmin scintimammography;
ROC curve analysis;
Quantitative scintimammography (qSMM)
- MeSH:
Area Under Curve;
Breast Neoplasms*;
Breast*;
Female;
Humans;
Injections, Intravenous;
Lymph Nodes;
Neoplasm Metastasis;
ROC Curve*;
Sensitivity and Specificity;
Thoracic Wall;
Tomography, Emission-Computed, Single-Photon
- From:Journal of Korean Breast Cancer Society
2004;7(1):49-54
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: Tc-99m Tetrofosmin is a new alternative to Tc- 99m MIBI for nuclear breast imaging. A receiver operating characteristic (ROC) curve analysis was performed to evaluate the feasibility of Tc-99m Tetrofosmin quantitative scintimammography (SMM) (qSMM) and to compare with previously reported Tc-99m MIBI qSMM data [J Kor Surg 1999;57(5):638-644)]. METHODS: Prone anterior, lateral planar and supine SPECT images were taken from 135 cases in 131 female patients (mean ages=44 yr) with breast mass (size> or =0.2 cm) after 30mCi intravenous injection of Tc-99m Tetrofosmin. 70 malignant and 65 benign lesions were histologically proven. Three regions of interest (ROIs) were drawn over designated areas: the Lesion (L), the Normal breast opposite the lesion (NL) and the right Chest wall (CW). L/NL and L/CW ratios on both the SPECT and the planar images were analyzed. RESULTS: ROC curve analysis revealed that the planar L/NL ratio and the SPECT L/NL and L/CW ratios had higher diagnostic accuracy for detecting breast cancer than he planar L/CW ratio did (P<0.05). The qSMM (mean), which is an arithmetic mean of the planar L/NL ratio, the SPECT L/NL ratio and the SPECT L/CW ratio, the sensitivity, the specificity, accuracy and area under curve (AUC) were 82.9%, 81.5%, 82.2% and 0.879 respectively. Presence of axillary lymph node metastasis showed a slightly higher qSMM (mean) value (2.79 {n=23} vs 2.75 {n=27} P=0.06). These are comparable with previously reported Tc-99m MIBI qSMM data of 84.4%, 76.6%, 81.0% and 0.847 respectively, and the presence of axillary lymph node metastasis showed a higher qSMM(mean) value (4.09 {n=17} vs 3.09 {n=28}, P=0.06) [J Kor Surg 1999; 57(5):638-644)]. CONCLUSION: Tc-99m Tetrofosmin qSMM (mean) is a useful and objective method for differentiating malignant from benign breast lesion and has the comparable diagnostic accuracies of Tc-99m MIBI qSMM.
