방사선의 의한 폐손상: CT 및 MR 소견
MR & CT Findings of Radiation-Induced Plumonary Injury
황희영, 박현주, 한헌, 양달모, 김상준, 정효선, 김형식, 이영석,
소속 상세정보
황희영 ( Hwang Hee-Young )
Joong-Ang Gil General Hospital Department of Radiology
박현주 ( Park Hyun-Joo )
Joong-Ang Gil General Hospital Department of Radiology
한헌 ( Han Heon )
Joong-Ang Gil General Hospital Department of Radiology
양달모 ( Yang Dal-Mo )
Joong-Ang Gil General Hospital Department of Radiology
김상준 ( Kim Sang-Joon )
Joong-Ang Gil General Hospital Department of Radiology
정효선 ( Chung Hyo-Sun )
Joong-Ang Gil General Hospital Department of Radiology
김형식 ( Kim Hyung-Sik )
Joong-Ang Gil General Hospital Department of Radiology
이영석 ( Lee Young-Seok )
Joong-Ang Gil General Hospital Department of Radiology
KMID : 0386119930290020217
Abstract
We retrospectively analyzed the CT (10 cases) and MR (5 cases) findings in 10 patients with radiation-induced pulmonary injury.
On CT studies, 8 cases showed fibrotic change and 6 of them also showed solid consolidation with bronchiectasis. The differential diagnosis of radiation-induced injury from residual or recurrent tumor was possible on CT studies which was
impossible on plain chest radiograph (2 cases) or MR study(1 case).
On MR studies, 4 cases showed solid consolidation with bronchiectasis and fibrosis. The signal intensity was siointense compared with that of the muscle on T1WI (5 cases), and hyperintense of PDWI and T2WI(3 cases). The lesions enhanced well on Gd-DTPA enhanced study (4 cases). The residual or recurrent tumor showed the same signal intensity and degree of enhancement with radiation-induced injury (2 cases).
CT and MR are useful for the evaluation of the anatomic details of the large overlapped area of increased density of the radiation-induced pulmonary injury on plain chest radiograph. But MR study is not superior to CT on the differentiation of
the residual or recurrent tumor and radiation-induced injury because the tumor may show the same signal intensity and degree of enhancement with radiation-induced injury.
키워드
Lung, CT 60.1211;Lung, MR 60 .1241;Lung, Radiation injury 60.47
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