1.A prospective clinical study of crystalloid and colloid solutions as priming additive fluids for cardiopulmonary bypass of the small children.
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(5):469-479
No abstract available.
Cardiopulmonary Bypass*
;
Child*
;
Colloids*
;
Humans
;
Prospective Studies*
2.A case of Behcet's syndrome.
Ju Hwa JIN ; Gong Chang HAN ; Jae Hoon CHUNG
Korean Journal of Obstetrics and Gynecology 1991;34(4):603-606
No abstract available.
Behcet Syndrome*
3.Use of Quantitative CT to Predict Postoperative Lung Function (Comparison of Quantitative CT and Perfusion Lung Scan).
Jo Han RHEE ; Seog Jae LEE ; Sung Jin KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(10):798-805
BACKGROUND: the prediction on changes in the lung function after lung surgery would be an important indicator in terms of the operability and postoperative complications. In order to predict the postoperative FEV1 - the commonly used method for measuring changes in lung function- a comparison between the quantitative CT and the perfusion lung scan was made and proved its usefulness. MATERIAL AND METHOD: The subjects included 22 patients who received perfusion lung scan and quantitative CT preoperatively and with whom the follow-up of PFT were possibles out of the pool of patients who underwent right lobectomy or right pneumonectomy between June of 1997 and December of 1999. The FEV1 and FVC were calibrated by performing the PFT on each patient and then the predicted FEV1 and FVC were calculated after performing perfusion lung scan and quantitative CT postoperatively. The FEV1 and FVC were calibrated by performing the PFT after 1 week and after 3 momths following the surgery. RESULTS: There was a significant mutual scan and the actual postoperative FEV1 and FVC at 1 week and 3 months. The predicted FEV1 and FVC(pneumonectomy group : r=0.962 and r=0.938 lobectomy group ; r=0.921 and r=913) using quantitative CT at 1 week postoperatively showed a higher mutual relationship than that predicted by perfusion lung scan(pneumonectomy group : r=0.927 and r=0.890 lobectomy group : r=0.910 and r=0.905) The result was likewise at 3 months postoperatively(CT -pneumonectomy group : r=0.799 and r=0.882 lobectomy group : r=0.934 and r=0.932) CONCLUSION: In comparison to perfusion lung scan quantitative CT is more accurate in predicting lung function postoperatively and is cost-effective as well. Therefore it can be concluded that the quantitative CT is an effective method of replacing the perfusion lung scan in predicting lung function post-operatively. However it is noted that further comparative analysis using more data and follow-up studies of the patients is required.
Follow-Up Studies
;
Humans
;
Lung*
;
Perfusion*
;
Pneumonectomy
;
Postoperative Complications
4.Slow flow and mural thrombus in aortic diseases: Spin-echo MR findings and their differentiation.
Jin Wook CHUNG ; Jae Hyung PARK ; Man Chung HAN
Journal of the Korean Radiological Society 1993;29(3):395-401
In order to evaluate the ability of spin-echo MR imaging to differentiate slow flow from mural thrombus in aortic diseases, we reviewed the spin-echo MR images of 13 patients with intraaortic thrombus documented by CT (N=11) or aortography (N=2). Six patients had aortic aneurysms and seven had aortic dissection. Intraaortic mural thrombi were accompanied by flow-related intraluminal signal of various patterns and extents in all 13 patients. On 10 gated MR studies, slow flow regions showed even-echo rephasing phenomenon (N=8), interslice variation of signal intensities of the intraluminal signal (N=7) and flow-related ghost artifact (N=2). However, these MR flow phenomena were obscured on two of three non-gated studies. Seven of 13 intraaortic thrombi remained hyperintense on T2-weighted second-echo images. In these circumstances, a hypointense boundary layer between slow flow and mural thrombus, which was caused by either 'boundary layer dephasing phenomenon' of slow flow or 'paramagnetic T2 shortening' of fresh clot at the edge of mural thrombus, was useful in discriminating the area of slow flow from that of mural thrombus. Proper interpretation of spin-echo MR images may obviate the need for phase display imaging or gradientecho imaging in differentiating slow flow and mural thrombus.
Aortic Aneurysm
;
Aortic Diseases*
;
Aortography
;
Artifacts
;
Humans
;
Magnetic Resonance Imaging
;
Thrombosis*
5.Slow flow and mural thrombus in aortic diseases: Spin-echo MR findings and their differentiation.
Jin Wook CHUNG ; Jae Hyung PARK ; Man Chung HAN
Journal of the Korean Radiological Society 1993;29(3):395-401
In order to evaluate the ability of spin-echo MR imaging to differentiate slow flow from mural thrombus in aortic diseases, we reviewed the spin-echo MR images of 13 patients with intraaortic thrombus documented by CT (N=11) or aortography (N=2). Six patients had aortic aneurysms and seven had aortic dissection. Intraaortic mural thrombi were accompanied by flow-related intraluminal signal of various patterns and extents in all 13 patients. On 10 gated MR studies, slow flow regions showed even-echo rephasing phenomenon (N=8), interslice variation of signal intensities of the intraluminal signal (N=7) and flow-related ghost artifact (N=2). However, these MR flow phenomena were obscured on two of three non-gated studies. Seven of 13 intraaortic thrombi remained hyperintense on T2-weighted second-echo images. In these circumstances, a hypointense boundary layer between slow flow and mural thrombus, which was caused by either 'boundary layer dephasing phenomenon' of slow flow or 'paramagnetic T2 shortening' of fresh clot at the edge of mural thrombus, was useful in discriminating the area of slow flow from that of mural thrombus. Proper interpretation of spin-echo MR images may obviate the need for phase display imaging or gradientecho imaging in differentiating slow flow and mural thrombus.
Aortic Aneurysm
;
Aortic Diseases*
;
Aortography
;
Artifacts
;
Humans
;
Magnetic Resonance Imaging
;
Thrombosis*
6.Expression of p53 and Rb Proteins in Invasive Ductal Carcinoma of the Breast.
Hyun Jin SON ; Han Sang YOON ; Myoung Jae KANG
Korean Journal of Pathology 1999;33(6):443-449
Inactivation of tumor suppressor genes may play an important role in many human cancers including breast. This study was done to determine the relationship between the expression of p53 and Rb protein and prognostic factors such as histopathologic differentiation, tumor size, and lymph node metastasis. In 57 cases of breast invasive ductal carcinomas, the immunohistochemical staining with p53 and Rb protein gave the following results: p53 protein was detected in 45.6% (26/57) of cases. Tumors with large size, poor differentiation or lymph node metastases tended to show increased expression of p53 protein. However, p53 protein expression did not show any significant correlation with prognostic factors such as tumor size (p value 0.25), histologic grade (p value 0.75), and positive lymph node status (p value 0.26). Rb protein was detected in 57.9% (33/57) of cases. Rb protein also did not show any significant correlation with prognostic factors such as tumor size (p value 0.56), histologic grade (p value 0.71), and positive lymph node status (p value 0.98). There was no significant correlation between p53 expression and Rb protein expression (p value 0.80).
Breast*
;
Carcinoma, Ductal*
;
Genes, Tumor Suppressor
;
Humans
;
Lymph Nodes
;
Neoplasm Metastasis
;
Retinoblastoma Protein*
7.The posterior tibial nerve somatosensory evoked potentoals in the hemiplegic patients.
Jin ho KIM ; Tai Ryoon HAN ; Seong Jae LEE
Journal of the Korean Academy of Rehabilitation Medicine 1993;17(4):525-533
No abstract available.
Humans
;
Tibial Nerve*
8.Arthroscopic removal of synovial hemangioma of the knee.
Sung Jae KIM ; Dae Yong HAN ; Jin Woo LEE
The Journal of the Korean Orthopaedic Association 1992;27(7):1945-1948
No abstract available.
Hemangioma*
;
Knee*
9.A clinical study of colorectal cancer.
Jin Han BAE ; Bong Wha CHUNG ; Jae Jung LEE ; Kyung Suk CHUNG ; Chul Jae PARK
Journal of the Korean Society of Coloproctology 1993;9(1):39-48
No abstract available.
Colorectal Neoplasms*
10.Hrombosed Aortic Dissections and Aortic Aneurysms: MRI Findings and Differential Diagnosis.
Jin Wook CHUNG ; Jae Hyung PARK ; Man Chung HAN ; Gi Seok HAN ; Yong Kyu YOON
Journal of the Korean Radiological Society 1994;30(5):853-858
PURPOSE: MRI is known to be an effective imaging modality of the aorta and its role is steadily increasing in the evaluation of acquired aortic diseases including aortic dissections and aortic aneurysms. However, differentiation of the aortic dissections with thrombosed false lumen from the aortic aneurysm with mural thrombus in MRI has not been easy. Therefore, the authors tried to find the characteristic MR featrses which would to differentiate the two diseases. MATERIALS AND METHODS: MR images of 6 patients with thrombosed aortic dissection and 7 patients with thrombosed aortic aneurysms were reviewed retrospectively and compared in regand to shape and extent of thrombus, dimension of aorta, and luminal flow signal. RESULTS: Thrombosed aortic dissections showed sharply demarcated crescent shaped aortic wall thickening of even thickness involving long segment of the aorta, whereas thrombosed aortic aneurysms showed irregular aortic wall thickening of uneven thickness localized in the short dilated segment of the aorta. Characteristically aortic aneurysm with mural thrombus showed eccentric intraluminal slow flow signal. In contrast to the signal void of the true lumen in aortic dissections, the residual lumen of the aortic aneurysm with mural thrombus revealed intraluminal signal due to slow flow. CONCLUSION: Familiarity to these MRI findings of thrombosed aortic dissections and aortic aneurysms may lead to the accurate differential diagnosis in majority of cases.
Aorta
;
Aortic Aneurysm*
;
Aortic Diseases
;
Diagnosis, Differential*
;
Humans
;
Magnetic Resonance Imaging*
;
Phenobarbital
;
Recognition (Psychology)
;
Retrospective Studies
;
Thrombosis