|
KMID : 0357520130360040319
|
|
Journal of Radiological Science and Technology
2013 Volume.36 No. 4 p.319 ~ p.326
|
|
|
Evaluation of Cancer Detection Efficiency by Means of Hybrid and Inverse Filter in Chest Radiography
|
|
Kim Youn-Young
Kim Tae-Young
Kim Hyun-Ji
Kim Jung-Min
Park Min-Seok
|
|
|
Abstract
|
|
|
|
The purpose of this study is to evaluate usefulness of Hybrid image and Inverse image about detection of tumor shadow in chest radiography using ROC analysis. Original images of 60 cases are selected from Standards digital image date base issued by the Japanese Society of Radiological Technology. Through computer language of C, Inverse images of 60 cases and Hybrid image of 30 cases are made. The continues reading experiment was conducted. In the case of inverse image were observed by 5 radiographer and 2 radiologist. In the case of In case of Hybrid image were observed by 3 student radiographer and 2 experienced radiographer. ROC curve are constructed using ROCKIT Program made by Metz. In Inverse image, a Az of average ROC curve was increases from 0.742 of original image to 0.775 of inverse image. In normal cases, the effect of the detrimental is same to that of the beneficial, however In abnormal cases, the beneficial effect is greater than detrimental effect. However in Hybrid image, a Az of average ROC curve was decreases from 0.5253 of original image to 0.4868 of Hybrid image. In Normal cases, the effect of the detrimental is greater than that of the Beneficial, however In abnormal cases, the Beneficial effect is greater than detrimental effect. The inverse image can be more positively considered for the detecting of tumor than the hybrid image.
|
|
|
KEYWORD
|
|
|
ROC curve, Hybrid Filter, Inverse Filter
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|