TY - GEN
T1 - Pulmonary nodule detection in PET/CT images
T2 - Medical Imaging 2012: Computer-Aided Diagnosis
AU - Teramoto, Atsushi
AU - Fujita, Hiroshi
AU - Tomita, Yoya
AU - Takahashi, Katsuaki
AU - Yamamuro, Osamu
AU - Tamaki, Tsuneo
PY - 2012
Y1 - 2012
N2 - In this study, an automated scheme for detecting pulmonary nodules in PET/CT images has been proposed using combined detection and hybrid false-positive (FP) reduction techniques. The initial nodule candidates were detected separately from CT and PET images. FPs were then eliminated in the initial candidates by using support vector machine with characteristic values obtained from CT and PET images. In the experiment, we evaluated proposed method using 105 cases of PET/CT images that were obtained in the cancer-screening program. We evaluated true positive fraction (TPF) and FP/case. As a result, TPFs of CT and PET detections were 0.76 and 0.44, respectively. However, by integrating the both results, TPF was reached to 0.82 with 5.14 FPs/case. These results indicate that our method may be of practical use for the detection of pulmonary nodules using PET/CT images.
AB - In this study, an automated scheme for detecting pulmonary nodules in PET/CT images has been proposed using combined detection and hybrid false-positive (FP) reduction techniques. The initial nodule candidates were detected separately from CT and PET images. FPs were then eliminated in the initial candidates by using support vector machine with characteristic values obtained from CT and PET images. In the experiment, we evaluated proposed method using 105 cases of PET/CT images that were obtained in the cancer-screening program. We evaluated true positive fraction (TPF) and FP/case. As a result, TPFs of CT and PET detections were 0.76 and 0.44, respectively. However, by integrating the both results, TPF was reached to 0.82 with 5.14 FPs/case. These results indicate that our method may be of practical use for the detection of pulmonary nodules using PET/CT images.
UR - http://www.scopus.com/inward/record.url?scp=84874886051&partnerID=8YFLogxK
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U2 - 10.1117/12.912102
DO - 10.1117/12.912102
M3 - Conference contribution
AN - SCOPUS:84874886051
SN - 9780819489647
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Medical Imaging 2012
Y2 - 7 February 2012 through 9 February 2012
ER -