Single breath-hold MR imaging of liver

Single breath-hold gradient echo images with Small Tip. Angle Gradient Echo(STAGE) were evaluated in the study of liver in 16 patients(4 normal liver, 5 hepatoma, 5 cholangiocarcinoma, 1 hemangioma, 1 cavernous transformation of portal vein). We obtained one slice of gradient echo during single breath-hold at the level of pathology defined on conventional spin echo inage. Single breath-hold gradient echo images were compared with spin echo images for image quality and artifacts. Single breath-hold gradient image showed improved resolution of vascular detail and excellent contrast between lesion and adjacent normal liver in hepatoma. Cholangiocarcinoma showed decreased contrast between lesion and biliary trees but improved contrast between lesion and blood vessel. Cavernous transformation of porta vein was noted as tortuous vessel of high signal intensity. Single breath-hold gradient echo scan increased vascular artifact, but decreased respiratory artifact leading to improved image quality. Single breath-hold technique can reduce can reduce imaging time and improve image quality and may be used as complementary method to the spin echo scan.

Sensitivity of 99mTc-pyrophosphate scintigraphy in diagnosis of acute myocardial infarction

No abstract available.

Primary Hyperparathyroidism by Parathyroid Gland Adenoma (Report of 2 cases with Review of the Literature)

The primary hyperparathyroidism is a complex endocrine disease caused by neoplasm or diffuse hyperplasia of parathyroid gland in which excessive paratyroid hormon is secreted. This results in chemical abnormalities of serum, and exerts major influences on the bone, kidney and gastrointestinal tract. The authors report 2 cases of primary hyperparathyroidism with review of the literature.

Percutaneous hepatic arterial catheterization for infusion chemotherapy in treatment of primary hepatoma

Chemotherapy offers palliative treatment to patient with advanced nonresectable hepatoma. The usefulness of systemic chemotherapy is limited becaused of serious side reaction and low concentration of drug at tumor. Butthis problem may be overcome by intraarterial infusion. Nonsurgical percutaneous hepatic arteiral catheterizationwas done in 21 patients with primary hepatoma, and infusion chemotherapy was done in 19 patients who were successful in catherization. The results were as follows; 1. Selective catheterization of hepatic artery proper,common hepatic artery, and celiac artery were seccessful in 4, 9 and 4 patients, respectively. The success rate ofselective catheterization is 80.9% including celiac artery among 21 patients with hepatoma. 2. Simple catherization method was applied in 14 patients, and catheter exchange and Loop methods were applied in 2 and 1patient respectively. 3. Complications related to catheterization, such as infection and bleeding on punctured site, intimal injury and dislodgement of catheter were not serious. 4. Drugs were well tolerated without serioustoxicity or complication. 5. 3 patients showed objective response and median survival time of treated patients is 2.5 months.

The radiological study of optic canal in Korean

Various methods of taking of optic foramen view and avalubilities have been studied by many foreigninvistigators, but those in Korea have not been reported yet. The authors have measured and examined the size andshapes of optic foramina of optic foramen views in 111 Korean checked at Inje Medical College Hospital duringabout 3 years form June 1979 to March 1982. The cases were divided into gwo groups, A and B, for the convenienceof study. Group A consisted of 50 normal Korean 5 to 55 years of age with no visual symptoms and signs. Group Bincluded 69 patients 3 to 75 yrs of age with visual symptoms and signs. The results were as follows; 1. Mean valueof actual diameter of optic foramen meassured by Goalwin's method in Group A; Right; A diameter; 4.21mm, Bdiameter; 4.32mm, Left; A diameter; 4.29mm, B diameter; 4.30mm. 2. Absolute symmetry of the greatest diameters ofboth optic foramina in Group A; 36%, difference of 0.5 or lessl 28%, from 0.5 to 1.0mm; 18%, from 1.0 to 1.5mm;8%, uncomparable cases; 10%. The greatest difference was 1.4mm. 3. The shapes of optic foramen in Group A; ovalshape; 65%, circular ; 29%, keyhole or double foramen; 6%. 4. In Goup B, the peak age group was second decade(31%), the most comon clinical cause of examiniation of optic foramen view was optic nerve atrophy(30%), and thepathologic findings were only 4 cases(7%). 5. The technique of optic foramen view by modified Pfeiffer's methoddelineated the outline of optic foramen more clearly than ordinary Rhese's method in our experience.