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임덕,연경모,Lim, Duk,Yeon, Kyung-Mo 대한영상의학회 1985 대한영상의학회지 Vol.21 No.4
Radiologic findings of Total Colonic Aganglionosis (T.C.A.) were analized in 15 patients with the results as follows; 1. Male to female ratio was 8:7. 2. There were six cases of small calibered colon, seven cases of normal colon and two cases of megacolon. 3. Free reflux of barium into the small bowel was observed in seven cases out of eight in which retrograde filling was tried. 4. Delayed films (24hrs or more) were available in eight cases and most of the barium remained in bowel in six cases. 5. There were abnormal colonic cotractions in three cases, decreased redundancy in five and five cases of irregular, hypertrophic mucosal wall suggesting enterocolitis. 6. Part of ileum were also aganglionic in five cases. There seems to be no pathognomonic barium enema findings in T.C.A.. But combination of these findings may suggest the possibility of T.C.A. T.C.A. should be considered in differential diagnosis of bowel obstruction in infants. Barium enema should be complete and dela ed films always be obtained.
골 육종 환자에서 항암제 동맥 주입 효과에 대한 방사선학적 분석: 자기공명영상과 동맥내 디지털감산혈관조영 소견을 중심으로
이구,김인원,연경모,윤현기,안효섭,Lee, Goo,Kim, In-One,Yeon, Kyung-Mo,Yoon, Hyun-Ki,Ahn, Hyo-Seop 대한영상의학회 1991 대한영상의학회지 Vol.27 No.5
For the evaluation of the effect of intraarterial chemotherapy with CDDP(cis-diaminedichloroplatinum) in the treatment of osteogenic sarcoma, we compared radiographic findings of magnetic resonance imaging(MRI) and intraarterial digital subtraction angiography(IA DSA) with the degree of tumor necrosis in pathologic speciments. The decrease in neovascularity and tumor stain in IA DSA showed good correlation with tumor response(necrosis) to IA chemotherapy. MRI was useful in the localization of intra-and extramedullary tumor. and detection of skip metastases, but signal intensity changes showed poor correlation with tumor response to chemotherapy. In gadolinium diethyltriamine pentaacetic acid enhanced MRI(Gd-DTPA MRI), the enhancing areas closely correlated with the areas of tumor stain IA DSA. In conclusion, IA DSA is a good imaging tool and Gd-DTPA MRI is expected to become a more useful modality in the evaluation of tumor response to chemotherapy in osteogenic sarcoma.
한헌,김인원,연경모,Han, Heon,Kim, In-One,Yeon, Kyung-Mo 대한영상의학회 1987 대한영상의학회지 Vol.23 No.4
The fluroscopically controlled foley catheter technique is an easy, safe, and successful method of removal of blunt esophageal foreign bodies such as coins, and avoids the risks of general anesthesia and endoscopy. AAuthors successfully removced four coins and one baduk-stone which obstructed upper esophagusm using Foley cathether technique at Seoul National Univ. Children's Hospital from November 1986 to April 1987.
한헌,김인원,연경모,Han, Heon,Kim, In-One,Yeon, Kyung-Mo 대한영상의학회 1987 대한영상의학회지 Vol.23 No.6
Gastric volvulus, organoaxial or mesenteroaxial rotation, is an uncommon cause of uper gastrointestinl obstruction in childhood. It may be suspected on plain radiographic examination of the abdomen and confirmed by upper gastrointestinal series. Six affected children are described. Symptoms wer3e mainly acute vomiting and abdominal distension. All patients had defect in perigastric ligaments.
이열,박재형,연경모,한만청,Lee, Yul,Park, Jae-Hyung,Yeon, Kyung-Mo,Han, Man-Chung 대한영상의학회 1984 대한영상의학회지 Vol.20 No.1
We obtained the following results by reviewing the radiographic findings of 15 cases of Sinus Valsava rupture who were diagnosed surgically at Seoul National University Hospital sined 1979. 1. Among distribution was from 15 years to 40 years with the mean age of 24 years. Among the 15 cases, 9 cases were male and 7 were female. 2. Ruptured sinus is right coronary sinus projecting to right ventricle in all 15 cases. Combined diseases are ventricular septal defect in 12 cases, Aortic Calcular heart disease in 4 cases, and narrowing of right ventricular outflow tract in 2 cases, and aneurysmal dilatation of right pulmonary artery in 1 case. 3. Chest X-ray findings were that of left to right shunt, i.e cardiomegaly, increased pulmonary vascularity but were normal in 3 cases. 4. Aortography showed sequential leakage of dye from right coronary sinus to right ventricle and finally to pulmonary artery in 9 cases, and in 9 cases of them the leakage is directly to right ventricular outflow tract without filling of sinus portion of them leakage is directly to right venricular outflow tract without filling of sinus portion of the ventricle., i.e.type 1. 5. The leakage was well shown in left ventricular diastolic phases and not shown in systolic phase. 6. Ventricular septal defects were not detected definitely in spite of taking left ventriculography. 7. Cineangiography is essential for detecting accurate site, degree and direction of sinus valsalva rupture and other associated cardiac abnormality.
김성룡,남문현,정환,연경모,Kim, Sung-Ryong,Nam, Mun-Hyon,Chung, Hwan,Yeon, Kyung-Mo 대한의용생체공학회 1987 의공학회지 Vol.8 No.2
Digital Subtraction Angiography(DSA) technique has been widely used to detect vascular diseases and hemodynamic parameters noninvasively. However, there factors in fluencing the resultant DSA image quality. In this paper, several important factors are suggested to improve the DSA image quality based on mathematicical analysis. Experimental DSA images for different filters are shown and also dicussed the difference between original and processed image qualities.