The thyroid function was evaluated by the radio angiography. This method involved the use of intravenous Tc- 99 m gamma camera with the image display of 1 picture/ second or 2 pictures/second has been setup before. The picture and the duration of the first radioactive transfer into the carotid and duration of radioactive transfer from carotid to the thyroid were monitored to evaluate the thyroid function.
Radionuclide Angiography ; Thyroid Function Tests

Occasionally it is difficult to preoperatively confirm the bleeding focus in acute lower gastrointestinal bleeding patients. Therefore, many diagnostic evaluations are needed - for example, colonoscopy, selective mesenteric angiography and Tc-99m RBC scintigraphy. However, if the bleeding focus remains unconfirmed preoperatively when the patient's state is unstable hemodynamically, the surgeon must inevitably perform exploratory laparotomy, followed by intraoperative endoscopy. We herein propose a new method of intraoperative endoscopy using Trocar(R) (Ethicon). Trocar(R) (Ethicon) was used in laparoscopic operation. This method has the merits of no air leakage, no contamination, fewer complicatons and ease of evaluation. We recommend that the use of Trocar(R) (Ethicon) in intraoperative endoscopy is essential in emergency operations for acute lower gastrointestinal bleeding.
Angiography ; Colonoscopy ; Emergencies ; Endoscopy* ; Hemorrhage* ; Humans ; Laparotomy ; Radionuclide Imaging

Angiography has been playing important roles in diagnosis and treatment in the field of orthopaedic surgery. Conventional angiography is the most reliable and widely used method in diagnosis of peripheral arterial disease. But the clinical use of the conventional angiography has been limited by the risk of possible complications and time-consuming procedures. Radionuclide sngiography is rapidly performed, rapidly interpretable and time-saving procedure for the visualization of arterial tree prior to vascular intervention in the critically ill patient. We have analyzed and compared the 22 cases who had taken radionuclide angiography and conventional angiography simultaneously from November, 1986 to August, 1987 in Department of Orthopaedic Surgery, Hanysng University Hospital. The results were as follow 1. Radionuclide angiography is simple, non-invasive, accurste, reproducible method. It eliminstes the discomfort and morbidity of conventional angiography and can be done on an outpatient basis at a much lower cost. It is useful in the patients who may be allergic to the contrast medium. 2. In cases of arterial occlusion, radionuclide angiogrpahy is also useful in the evsluation of obstruction of major artery and can be substituted for conventionsl angiography. 3. For the purpose of evaluation of success in the cases of vascular reconstruction, radionuclide angiogrphy also demonstrate the vasculsr blood flow without any risk. 4. Although rsdionuclide angiography has limitstion in snatomic detsil, it could be psrtially substituted for conventionsl angiography in the diagnosis of vascular anomalies or tumors.
Angiography ; Arteries ; Critical Illness ; Diagnosis ; Humans ; Methods ; Outpatients ; Peripheral Arterial Disease ; Radionuclide Angiography ; Trees

PURPOSE: The purpose of this animal and clinical study was to compare intra-arterial(IA) scintigraphy withangiography in the localization of gastrointestinal (GI) bleeding. MATERIALS AND METHODS: After sedation withintramuscularly administered ketamine, lower GI bleeding was induced in ten rabbits. Using inguinal cut-down, anarterial femoral 3F catheter was placed in the proximal mesenteric artery. Following abdominal incision to exposethe bowel, lower GI bleeding was caused by incising the antimesenteric border of the small bowel wall. Initialangiography was performed, and this was followed by Tc-99m pertechnetate IA scintigarphy. Tc-99m RBC IAscintigraphy involved two patients who had undergone selective mesenteric arterial catheterization for theevaluation of acute lower GI bleeding. RESULTS: Ten rabbits, bleeding at a mean rate of 0.7g/min, were studied.IA scintigraphy was superior to angiography in four cases and equal in six. The sensitivity of angiography was40%(4/10), and IA scintigraphy 80%(8/10). In one patient, Tc-99m RBC was administered directly into the superiormesenteric artery and ulcer bleeding in the transverse colon was identified. Prior to conventional angiography,the bleeding had been occult. In a second patient, in whom angiography had revealed a hypervascular mass,selective injection of Tc-99m RBC into the superior mesenteric artery revealed tumor(leiomyoma) bleeding in thejejunum. CONCLUSION: Selective IA scintigraphy was valuable for detecting intestinal bleeding, occult duringconventional studies and may be useful for detecting acute bleeding at the time of negative angiography.
Angiography ; Animals ; Arteries ; Catheterization ; Catheters ; Colon, Transverse ; Hemorrhage* ; Humans ; Ketamine ; Mesenteric Arteries ; Mesenteric Artery, Superior ; Rabbits ; Radionuclide Angiography ; Radionuclide Imaging* ; Sodium Pertechnetate Tc 99m ; Ulcer

A 20-year-old man underwent a Tc-99m HMPAO labeled leukocyte scan for the evaluation of an infection at the stump of an AK amputation, which was conducted due to an open communicated fracture of the left lower leg. Blood-flow and blood-pool images demonstrated a pseudoaneurysm with a focus of intense activity medial to the stump, and centered within a large photopenic defect by surrounding hematoma. Delayed image obtained at 3 hours post-injection showed persistent intense and slight increased activity. Contrast angiography confirmed the presence of a pseudoaneurysm arising from a branch of the left superficial femoral artery.
Amputation Stumps* ; Amputation* ; Aneurysm, False* ; Angiography ; Femoral Artery ; Hematoma ; Humans ; Leg ; Leukocytes* ; Radionuclide Angiography ; Technetium Tc 99m Exametazime* ; Young Adult

Esophageal hemangioma is an extremely rare benign tumor that causes dysphagia and massive upper gastrointestinal bleeding. Although certain abnormalities seen on a barium swallow esophagography or at endoscopy may suggest an esophageal hemangioma, a contrast CT and radionuclide angiography using a blood-pool radiopharmaceutical can characterize the intense vascularity of the tumor. We experienced the ase of a 7x7x3.5 cm in size giant cavernous hemangioma of the lower 1/3 of esophagus in a 40 year old man. A mural cavernous hemangioma was diagnosed with a barium swallowed esophagogaphy, endoscopy, and a contrast CT. It was treated successfully by transthoracic esophagectomy including the tumor and esophagogastrostomy.
Adult ; Barium ; Deglutition Disorders ; Endoscopy ; Esophageal Neoplasms ; Esophagectomy ; Esophagus* ; Hemangioma ; Hemangioma, Cavernous* ; Hemorrhage ; Humans ; Radionuclide Angiography

Reflex sympathetic dystrophy syndrome is characterized by variable complex of the following symptoms, such as pain, tenderness, vasomotor instability, and trophic changes in distal extremities resulting from injury to either central or peripheral nervous tissue. We measured blood flow using radioisotope angiography with agent containing technecium-99m in one patient with reflex sympathetic dystrophy syndrome. Blood flow were significantly lower in affected side than normal side. After epidural block with 0.5% lidocaine and left lumbar sympathetic block with 100% alcohol, burning pain was disappeared and blood flow was increased to near or above in relation to the normal side. Radioisotope angiography is a noninvasive study and not so expensive. And we thought that radioisotope angiography may be a useful aid not only for diagnosis, but also for evaluating therapeu-tic response.
Burns ; Diagnosis ; Extremities ; Humans ; Lidocaine ; Radionuclide Angiography* ; Reflex Sympathetic Dystrophy* ; Reflex*

BACKGROUND: A left to right shunt through an iatrogenic atrial septal defect(ASD) is known to occur after percutaneous mitral valvuloplasty(PMV), however, its hemodynamic significance as well as methods for the quantitation and follow-up evaluation have not been well established. SUBJECTS AND METHOD: In order to compare the feasibilities of noninvasive diagnostic methods for the detection and quantitation of the left-to-right shunt after PMV. 35 patients(age 37+/-10 years) undertook either radionuclide angiography or transesophageal echocardiography or both within a week after PMV. Qp/Qs was calculated by Fick's oxygen method during cardiac catheterization and by indicator dilution method during radionuclide angiography. The left-to-right shunt was also quantified with transesophageal echocardiography(TEE) by calculating shunt flow rate(Q=2 pir2Vr) using isovelocity surface area. RESULT: TEE was the most sensitive to detect ASD(16 among 27 patients, 59%) compared to either RI angiography(5 among 27 patients, 18%, Qp/Qs>1.5) or cardiac catheterization(4 among 35 patients, 11%, oxygen step-up>7%). Calculated shunt flow rate by TEE showed significant linear correlation to the Qp/Qs by cardiac catheterization(r=0.73, p<0.001). Also there was a significant correlation between Qp/Qs by radionuclide angiography and by cardiac catheterization(r=0.49, p<0.01). CONCLUSION: Both radionuclide angiography and TEE appear useful for the detection and quantitation of the left to right shunt after PMV. Since TEE seems to be not only more sensitive to detect the presence of the ASD than either radionuclide angiography or cardiac catheterization but useful to quantify the left-to-right shunt, it appears to be useful method for the follow-up evaluation after PMV.
Cardiac Catheterization ; Cardiac Catheters ; Echocardiography, Transesophageal ; Follow-Up Studies ; Hemodynamics ; Humans ; Oxygen ; Radionuclide Angiography

BACKGROUND: To assess the valve of stress scintigraphy in patients with left bundle branch block(LBBB), patients with LBBB underwent stress scintigraphy, coronary angiography and left ventriculography. METHOD: Exercise(n=12) or pharmacology(n=1) scintigraphy, coronary angiography and left ventriculography were performed in 13 patients(12 men and 1 woman, aged 53-81 years) with LBBB. RESULT: 1) All patients had anteroseptal defects on scintigram. 2) Among these, 3 patients(23%) did not have any significant coronary artery stenosis on coronary angiogram. CONCLUSION: Stress scintigraphic change may not help much in the detection of coronary artery disease(CAD) in patients with LBBB.
Bundle-Branch Block* ; Coronary Angiography ; Coronary Stenosis ; Coronary Vessels ; Female ; Humans ; Male ; Radionuclide Imaging*

Since the first report by Berberich and Hirsch in 1923, conventional angiography had been playing essential roles in diagnosis and treatment in the field of Orthopedic Surgery. Angiography is still the most definitive method for evaluating arterial disease, and is also an invaluable aid in the diagnosis of certain abnormalities which characteristically alter the normal vascular pattern. But the clinical use of conventional angiography as a routine diagnostic study has been limited by the risk associated with arterial catheterization cost, and poor patient acceptance. With improvement of radionuclide angiography and development of the methods for the identification and amplification of signals from small quantities of intravascular administered iodinated contrast agent and their combination with image subtraction (so called digital subtraction angiography, DSA), we have partially substituted the DSA and Radionuclide angiography for conventional angiography in diagnosis and post-operative evaluation of orthopedic patients. We have analyzed and compared the 197 cases who had taken conventional angiography from August, 1981 to July, 1985, and 16 cases who had taken radionuclide angiography from January, 1983 to July, 1985, and 21 cases who had taken DSA from October, 1983 to July, 1985 in Department of Orthopedic Surgery, Seoul National University Hospital. The results were as follow: 1. Conventional angiography is the most reliable and most widely used method in diagnosis of peri pheral arterial disease and evaluating the distribution of peripheral circulation of patient who need arterial reconstruction. But the clinical use of the angiography has been limited by the risk of complications. 2. DSA is simple, relatively non-invasive and can be done in out-patient basis. DSA is particulary useful and can replace the conventional angiography in post-operative assessment of peripheral vascular reconstruction, in the assessment of blunt and penetrating peripheral arterial trauma, and in the evaluation of peripheral aneurysm and vascular malformation. 3. Radionuclide angiography is also simple, and has no morbidity and useful in the patients who may be allergic to the contrast medium. Radionuclide angiography is useful in the evaluation of obstruction of major artery, deep vein thrombosis, and in repeated post-operative evaluation of arterial reconstruction.
Aneurysm ; Angiography ; Angiography, Digital Subtraction ; Arteries ; Catheterization ; Catheters ; Diagnosis ; Extremities ; Humans ; Methods ; Orthopedics ; Outpatients ; Radionuclide Angiography ; Seoul ; Vascular Malformations ; Venous Thrombosis