1.Magnetic Resonance Imaging of Uterine Mass.
Yeungnam University Journal of Medicine 1995;12(2):163-177
No abstract available.
Magnetic Resonance Imaging*
2.Diagnostic Value of Computed Tomography in Acetabular Fracture.
Sun Yong KIM ; Bok Hwan PARK ; Joo Chul IHN
Yeungnam University Journal of Medicine 1988;5(1):43-48
We retrospectively analyzed 22 patients pelvic CT, in whom the acetabular fracture were suspected in plain film. And compared and analyzed the computed tomogram findings and plain radiographic findings. The results were as follows. CT enables better evaluation of shape, extent, and degree of separation of fragment. CT was helpful in detecting the combined fracture and soft tissue injuries. CT showed intraarticular loose bodies, which were invisible on plain film. In patients with pelvic trauma, no necessary changing position during CT examination. CT was useful demonstrates the remnant of intraarticular osseous fragment and adequacy of reduction after surgery.
Acetabulum*
;
Humans
;
Retrospective Studies
;
Soft Tissue Injuries
3.IV bolus CT findings of the tuberculous granuloma: A case report.
Jae Ho CHO ; Jae Chun JANG ; Bok Hwan PARK
Journal of the Korean Radiological Society 1993;29(1):147-151
Isolated heaptic tuberculous granuloma with no coexistent tuberculosis elsewhere in the body is extremely rare. We report a case of pathologically proven tuberculous granuloma in the liver followed with both IV bolus and portal CT scans. The lesion on preenhanced CT scan showed undefinable isodensity. After IV bolus injection, it showed poor enhancement with central low-density and surrounding hyperdenity due to compensatory hypervascularity of the left lobe of liver in early phase. It showed peripheral rim enhancement in late phase and in delayed phase showed relatively homogeneous but slightly decreased contract enhancement. On portal CT scan, it showed a hypodense portal defect similar to other hepatic mass lesions. During follow-up studies, it was a slowly growing mass which was more easily detectable by prtal CT scans than bolus CT scans.
Follow-Up Studies
;
Granuloma*
;
Liver
;
Tomography, X-Ray Computed
;
Tuberculosis
4.Embolization of carotid-cavernous fistula using a silicone balloon and a tracker catheter system.
Sun Yong KIM ; Kil Ho CHO ; Bok Hwan PARK
Journal of the Korean Radiological Society 1992;28(1):36-41
With the recent introduction and development of the detachable balloon system, it has become the treatment of choice in the management of carotid cavernous fistulas(CCFs). But, since most delivery systems for embolization of CCF mainly depend on flow guidance for balloon delivery, in cases of small fistula, pseudoaneurysm and arterialized venous collaterals, failure of balloon embolization can occur. To overcome these limitations, the authors designed and used a new versatile, steerable, and flow-guided detachable balloon system by using a Tracker catheter system with silicone or latex balloons. Using this maneuver, we could get successful fistula occlusion in 7 out of 8 patients(silicone balloon). But in one case, we had to occlude the internal carotid artery at the fistula site, proximal and distal cervical portions of the internal carotid artery. This balloon delivery system proved to provide high selectivity for fistula and relatively ease of handing.
Aneurysm, False
;
Balloon Occlusion
;
Carotid Artery, Internal
;
Catheters*
;
Fistula*
;
Hand
;
Latex
;
Silicon*
;
Silicones*
5.A Case of Primary Intracranial Malignant Melanoma.
Jae Min PAIK ; Gi Hwan CHOI ; Jae Bok PARK
Journal of Korean Neurosurgical Society 1991;20(10-11):930-936
The primary malignant melanoma arising in the leptomeninges of the central nervous system is extremely rare. We report a case of malignant melanoma, apparently thought to be originated from leptomeninges, with diffuse neoplastic process widely spreaded over the leptomeninges of 42 years old man, who had suffered severe headache, nausea and left hemiparesis. This patient is free of the symptoms for six months after operation. The literature on this subject is briefly reviewed.
Adult
;
Central Nervous System
;
Headache
;
Humans
;
Melanoma*
;
Nausea
;
Paresis
6.The analysis of ultrasonographic findings in breast carcinoma.
Jin Wook LEE ; Mi Soo HWANG ; Bok Hwan PARK
Yeungnam University Journal of Medicine 1992;9(2):269-274
Authors retrospectively analyzed ultrasonographic findings of 12 cases of breast carcinomas which were proven pathologically at Yeungnam University Hospital from March 1992 to August 1992. Classically, breast carcinomas were described as irregular and lobulated hypoechoic solid masses with inhomogeneous internal echoes and frequent attenuation of the sound beam. And other additional ultrasonographic findings were echogenic rim, disruptions of superficial layer, microcalcification, skin thickening and so on. In our studies, not all of these findings of breast carcinomas were found in each case, but most of these findings were noted. However, several studies have demonstrated considerable overlap in the ultrasonographic appearance of benign lesions and carcinoma. Thus, accurate sonographic determination of the type of solid mass is not possible with current ultrasonographic imaging techniques and criteria. For more accurate diagnosis of breast lesions, sonographic and other imaging techniques are interpreted together.
Breast Neoplasms*
;
Breast*
;
Diagnosis
;
Retrospective Studies
;
Skin
;
Ultrasonography
7.Comparison of portal CT and indirect portography in hepatic masses.
Jung Kon KOH ; Jae Chang CHANG ; Bok Hwan PARK
Journal of the Korean Radiological Society 1993;29(2):255-261
We compared 87 portographic filling defects detected by portal CT in 64 patients were compared with those obtained by indirect portography. The indirect portography could visualize portogram only in anterior-posterior view. But the portal portal CT could visualize both portogram and hepatogram. We examined the portal CT and indirect portography and compared the accuracy of the both methods to evaluate the limitation and significance of the indirect protography. The mass shape lesions were seen on the portal CT which means portal flow defects of the mass lesions only could not depict totally in indirect portography (0%, 0/41). And the larger defects than real mass lesion were seen in portal CT means mass with associated portal flow defect and find portal vein invasion around the mass in 52% (24/46) of the indirect portography. Among them, only 66% of mass were detected correctly in the indirect portography comparing with mass lesion in portal CT. In summary, indirect portogram could not detect small filling defects which detected in portal CT and could not depict the extent of large filling defects. It also could not visualize correctly the protal flow in non-lesion side of the liver parenchyma.
Humans
;
Liver
;
Portal Vein
;
Portography*
8.Preoperative Staging of Endometrial Carcinoma by MRI.
See Hyung KIM ; Jae Ho CHO ; Bok Hwan PARK
Yeungnam University Journal of Medicine 2002;19(2):116-125
BACKGROUND: In patients with endometrial carcinoma, preoperative evaluation of exact staging has important prognostic and therapeutic implications. The incidence of pelvic and aortic lymph node involvement in endometrial carcinoma depends on grade of tumor differentiation and depth of myometrial invasion. MATERIAL AND METHOD: To evaluate whether MRI provides a preoperative assessment for staging of endometrial carcinoma, MRI was undertaken in 28 patients, a few weeks before operation. Myometrial invasion was devided in three categories, and involvement of cervix, adnexa, and pelvic cavity were classified. RESULTS: The results of MR imaging were compared with these of pathology. The preoperative MRI staging of endometrial carcinoma was correct in 22 out of 28 patients. In the evaluation of myometrial invasion, the MR imaging underestimated in 4 cases and overestimated in 1 case. CONCLUSION: In patients with endometrial carcinoma, MR imaging is very useful in the assessment of the depth of myometrial invasion, stromal invasion of cevix, lymphatic & pelvic metastases and extent of the lesion.
Cervix Uteri
;
Endometrial Neoplasms*
;
Female
;
Humans
;
Incidence
;
Lymph Nodes
;
Magnetic Resonance Imaging*
;
Neoplasm Metastasis
;
Pathology
9.Advantages of incremental dynamic CT in the evaluation of pancreatic and peripancreatic lesions.
Jae Chun CHANG ; Jae Ho CHO ; Bok Hwan PARK
Journal of the Korean Radiological Society 1993;29(4):787-793
Authors compared early phase scan of the IV bolus CT (two phase incremental bolus dynamic CT) with late enhanecd scan similar to the conventional contrast enhanced CT for evaluation of the advantages of the IV bolus CT with two viewpoints of the pancreatic or peripancreatic mass and peripancreatic lymphadenopathy in 68 patients-28 cases of the pancreatic cancer, 6 cases of the pancreatitis and 34 cases of the pancreatic or peripancreatic metastasis. On the diagnosis of the pancreatic or peripancreatic mass, IV bolus CT could show the lesion(s) more easily in 41% (Grade II; 13/31) and much more easily in 34% (Grade III; 10/31) when compared with conventional contrast CT scan. The diagnosis of the peripancreatic lymph node involvement was also easy in 51%(Grade II; 20/39) and much easier in 37% (Grade III; 14/39). We thought that these differences were originated from the increase of the contrast between the lesion and normal portion because the early enhanced scans reflected the active blood flow change more exactly. Therefore IV bolus CT had advantages in comparison with the conventional drip infusion contrast CT in the diagnosis of the presence and pathologic extension of the pancreatic and peripancreatic lesion.
Diagnosis
;
Infusions, Intravenous
;
Lymph Nodes
;
Lymphatic Diseases
;
Neoplasm Metastasis
;
Pancreatic Neoplasms
;
Pancreatitis
;
Tomography, X-Ray Computed
10.Advantages of incremental dynamic CT in the evaluation of pancreatic and peripancreatic lesions.
Jae Chun CHANG ; Jae Ho CHO ; Bok Hwan PARK
Journal of the Korean Radiological Society 1993;29(4):787-793
Authors compared early phase scan of the IV bolus CT (two phase incremental bolus dynamic CT) with late enhanecd scan similar to the conventional contrast enhanced CT for evaluation of the advantages of the IV bolus CT with two viewpoints of the pancreatic or peripancreatic mass and peripancreatic lymphadenopathy in 68 patients-28 cases of the pancreatic cancer, 6 cases of the pancreatitis and 34 cases of the pancreatic or peripancreatic metastasis. On the diagnosis of the pancreatic or peripancreatic mass, IV bolus CT could show the lesion(s) more easily in 41% (Grade II; 13/31) and much more easily in 34% (Grade III; 10/31) when compared with conventional contrast CT scan. The diagnosis of the peripancreatic lymph node involvement was also easy in 51%(Grade II; 20/39) and much easier in 37% (Grade III; 14/39). We thought that these differences were originated from the increase of the contrast between the lesion and normal portion because the early enhanced scans reflected the active blood flow change more exactly. Therefore IV bolus CT had advantages in comparison with the conventional drip infusion contrast CT in the diagnosis of the presence and pathologic extension of the pancreatic and peripancreatic lesion.
Diagnosis
;
Infusions, Intravenous
;
Lymph Nodes
;
Lymphatic Diseases
;
Neoplasm Metastasis
;
Pancreatic Neoplasms
;
Pancreatitis
;
Tomography, X-Ray Computed