No abstract available.
Drug Therapy, Combination* ; Necrosis* ; Radiotherapy* ; Small Cell Lung Carcinoma*

PURPOSE: Pediatric sedation is an important factor for obtaining the images of good quality. We performed this study to analyze the efficacy of our sedation protocol using chloral hydrate. MATERIALS AND METHODS: We collected prospectively 151 sedation records of children(1 day-15 years old), who were sedated with chloral hydrate for MR(n=112) or CT(n=39) studies. We initially administered 50mg/Kg orally(n=94) or rectally(n=57) 30 minutes before the scheduled examinations, and then administered additionali dose (second dose :25-35mg/Kg, third dose:10-15mg/Kg) to patients whom initial dose failed to sedate. RESULTS: Satisfactory sedation was achieved by initial administration in 109 patients(72%) without si difference between oral(per oral: P.O.) and rectal(per rectal: P.R.) administration. Second dose was required in 28% and third dose in 5%. MR and CT examinations required second dose in 36(32%) and 6 patients(15%), respectively. P.O. -patients vomited in 5%. P.R. -patients defecated in 22% after initial administration. There were no other serious complications. Time interval from the drug administration to the start of examinations was 33 minutes in initial-dose-group and 64 minutes in additional-dose-group. Two patients could not complete MR examination due to early arousal. Prolonged sedation, requiring more than 30 minutes for alertness after MR and CT examinations, was encountered in twenty(18%) and two patients(5%), respectively. CONCLUSION: Our protocol using chloral hydrate(P.O. or P.R.) is thought to be an effective and safe method for pediatric sedation for MR or CT imaging.
Arousal ; Child* ; Chloral Hydrate* ; Humans ; Prospective Studies

No abstract available.
Thoracoscopy*

No abstract available.
Pulmonary Artery* ; Takayasu Arteritis*

No abstract available.
Idiopathic Pulmonary Fibrosis*

No abstract available.
Idiopathic Pulmonary Fibrosis* ; Radiographic Image Enhancement*

PURPOSE: Authors reviewed CT and MR findings of patients with parapharyngeal masses, and their incidence and characteristic findings were studied. MATERIALS AND METHODS: We reviewed 27 CT and 9 MR of pathologically proven 29 patients with primary parapharyngeal mass Neurogenic tumor (17 cases) and other rare masses (3 carotid body tumors, 2 pleomorphic adenomas, 2 cavernous hemangiomas, 1 cavernous lymphangioma, 2 carotid artery pseudoaneurysms, 1 non-Hodgkin's lymphoma, 1 idiopathic cervical fibrosis) were included and the characteristic CT and MR findings were studied. RESULTS: Neurilemmoma was seen as a well-demarcated, solid mass of heterogeneous attenuation or intensity, so that pleomorphic adenoma of minor salivary gland origin could not be differentiated by demarcation, attenuation, or signal intensity of the tumor itself. The direction of carotid artery displacement was not constant in cases of neurilemmomas while the styloid process was constantly displaced laterally in all cases. Characteristic CT and MR findings of other rare tumors were described. CONCLUSION: Neurogenic tumor is the most common parapharyngeal space mass and the direction of displacement of styloid process might be helpful in differential diagnosis from pleomorphic adenoma. Other rare tumors showed very characteristic CT and MR finidings and could be differentiated easily.
Adenoma, Pleomorphic ; Aneurysm, False ; Carotid Arteries ; Carotid Body Tumor ; Diagnosis, Differential ; Hemangioma, Cavernous ; Humans ; Incidence ; Lymphangioma ; Lymphoma, Non-Hodgkin ; Neurilemmoma ; Salivary Glands, Minor

The fungus aspergillus can cause a variety of pulmonary disorders. Aspergilloma is a noninvasive aspergillus colonization of virtually any type of preexisting pulmonary cavity or Cystic space. Invasive pulmonary aspergillosis is serious, usually fatal infection in patients being treated with immunosuppressants or who have chronic debilitating disease. Allergic bronchopulmonary aspergillosis is charaterized clinically by asthma, blood and sputum eosinophilia and positive immunologic reaction to aspergillus antigen. Awareness of the radio-graphic and CT findings of pulmonary aspergillosis is important in making the diagnosis of aspergillus-caused pulmonary disorders. In this pictorial essay, we illustrated various radiological findings of pulmonary aspergillosis focused on CT findings correlated with gross pathologic specimens.
Aspergillosis, Allergic Bronchopulmonary ; Aspergillus ; Asthma ; Colon ; Diagnosis ; Eosinophilia ; Fungi ; Humans ; Immunosuppressive Agents ; Invasive Pulmonary Aspergillosis ; Pulmonary Aspergillosis* ; Sputum

The fungus aspergillus can cause a variety of pulmonary disorders. Aspergilloma is a noninvasive aspergillus colonization of virtually any type of preexisting pulmonary cavity or Cystic space. Invasive pulmonary aspergillosis is serious, usually fatal infection in patients being treated with immunosuppressants or who have chronic debilitating disease. Allergic bronchopulmonary aspergillosis is charaterized clinically by asthma, blood and sputum eosinophilia and positive immunologic reaction to aspergillus antigen. Awareness of the radio-graphic and CT findings of pulmonary aspergillosis is important in making the diagnosis of aspergillus-caused pulmonary disorders. In this pictorial essay, we illustrated various radiological findings of pulmonary aspergillosis focused on CT findings correlated with gross pathologic specimens.
Aspergillosis, Allergic Bronchopulmonary ; Aspergillus ; Asthma ; Colon ; Diagnosis ; Eosinophilia ; Fungi ; Humans ; Immunosuppressive Agents ; Invasive Pulmonary Aspergillosis ; Pulmonary Aspergillosis* ; Sputum

No abstract available.
Bronchiectasis* ; Bronchography*