Lung Care의 Nodule Enhance View를 이용한 폐결절 발견의 유용성

Availability of Lung Nodule Find Using the Nodule Enhance View of Lung Care

Purpose With the incidence of lung cancer increasing the usage of low-dose CT in early detection of the disease is also in the increase. Here we attempted to estimate has Nodule Enhance View could contribute in detection of pulmonary nodules in low-dose CT. Materials and Methods The object of this study were exammees taking low-dose CT in health check at our hospital from July 1st to july 31st in 2005. The examineeswere consisted of 47 male and 14 female. The total number was 60 and the average age was 47. We carried out only non-contrast scan and 64 MDCT(Somatom Sensation 64, Siemens) was used to get spiral scans under the condition of 30 effective mAs. After getting 1mm and 5mm thickness images at the same time, 5mm thickness images were transmitted to PACS and 1mm images were transmitted to mini server. In addition, 1mm thickness images were processed by Nodule Enhance View of Lung Care(Syngo Siemens). The final analysis of Lung Care was comparedwith interpretation of staffs in radiologist to measure the accuracy of Nodule Enhance View of Lung Care. Results After processing 1mm thickness images of 60 examinees by nodule enhance view, 14 examinees seemed to have nodule. This result was compared with the analysis of staffs in radiologist. Assuming that the interpretation of staff in radiologist had 100% accuracy, 23 examinees were in normal condition and the rest 37 got symptoms according to the medical opinion. Among them 12 examinees had nodule and the difference between Nodule Enhance View and staffs interpretation was only 2. Nodule detection points of the 2 examinees were different from that of normal exammees. Accuracy of Nodule Enhance View was 85.7% and the error limit of the results were 0.3%. Conclusion Sharing the result of Lung Care with staffs in radiologist, it is expected to have a great advantage to point out nodule and could be a useful method to check and determine lung cancer in advance. But detection of vessel as nodule could be a problem of Lung Care system to find a proper way to overcome.