No abstract available.
Neuromuscular Junction* ; Physiology*

PURPOSE: In order to assess the incidence and radiologic findings of herniation pit of the femur neck in Korean. IVlaterials and Methods:In 152 macerated femurs of 88 cadavers, and randomly selected 115 hips of 70 patients, the presence of herniation pit was determi ned by using fluoroscopy and radiography. It was then examined by CT for inspection of overlying surface and its opening was confirmed by inserting thin steal wire under the fluoroscopic guidance. RESULTS: Seventeen herniation pits in 15 macerated femurs of 13 cadavers were noted. (14.8%, 13/88). Two of 13 individuals showed bilaterality. All lesions were found only in males. Six herniation pit in 6 femurs of 6 patients (8.6%, 6/70) were also noted. All lesions were on anterosuperior aspect of. femur neck. Plain radiographs of macerated femurs revealed well marginated and thin sclerosis in 15 lesions. Of all 23 lesions, CTshowed cortical breakdown in 3, and overlying cortical thickening in 8. In 15 macerated femurs, roughed area of cortex was found in anterosuperior aspect of femur in all cases, and tiny openings(diameter less than 1 mm) related to cystic lesions were confirmed in 9 lesions. CONCLUSION: The incidence of herniation pits was 14.8% in 88 cadaver, and 8.6% in 70 patients. All were males.
Cadaver ; Femur Neck* ; Femur* ; Fluoroscopy ; Hip ; Humans ; Incidence* ; Male ; Radiography ; Sclerosis

PURPOSE: To evaluate the optimal pulse sequences in the detection of erosions and for the discrimination of theeffusion from pannus. MATERIALS AND METHODS: MR studies were performed in thirteen patients with clinical diagnosis of rheumatoid arthritis. We used a 1.5T MR unit with single or dual 3 inch coil. We compared coronal images at the same location, obtained with pulse sequences of T2, T2 with fat saturation, and postcontrast T1 with fat suppression. Erosions were assessed by comparing the count of the numbers of erosions depending on each imaging method. A four point scoring systems was used for the comparison of conspicuitof lesion. RESULTS: T2WI with fat suppression and postcontreat T1WI with fat suppresison were better than conventional T2WI in the detection of erosions. The pannus had a heterogeneous signal on T2WI, some of which were enhanced after the intravenous injection of MR contrast a gents. CONCLUSION: We suggest that the fat suppression TIWI with enhacnement or the fat suppression T2WI were better than conventional T2WI for detecting both bone erosion and pannus. The postcontrast MR imaging may often be helpul in distinguishing pannus from the effusion.
Arthritis, Rheumatoid* ; Diagnosis ; Discrimination (Psychology) ; Humans ; Injections, Intravenous ; Magnetic Resonance Imaging* ; Wrist*

No abstract available.
Femur* ; Gestational Age* ; Ultrasonography*

No abstract available.
Estradiol* ; Female ; Ovary*

No abstract available.
Female ; Pregnancy ; Pregnancy, Tubal*

No abstract available.
Animals ; Cricetinae* ; Fertilization in Vitro* ; Humans*

There are many reports that d-tubocurarine has marked species and individual variations in the matter of muscle relaxation. Therefore the dose-related neuromuscular blocking effect of d-tubocurarine was studied in anesthetized patients. Eighty adult patients were studied during halothane-N2O-O2 anesthesia for various kinds of surgery. These patients were in good physical shape, without known or suspected liver, kidney, neuromuscular or hormonal disease, and were not taking medication known to influence the action of relaxants. Preanesthetic medication consisted of atropine 0.01mg/kg and valium 0.18 mg/kg intramuscularly 60 minutes before anesthesia. Anesthesia was induced with thiopental 4~5mg/kg. Succinylcholine 1mg/kg was used to faciliate tracheal intubation. Moderate hyperventilation was maintained throughout by a mechanical ventilator and patient temperature was maintained at 35~36 degrees C during the study. Forty patients received a single intravenous d-tubocurarine 0.1mg/kg(group A) after the succinylcholine effect had worn off and the other forty patients received a single intravenous d-tubocurarine 0.2mg/kg(group B) after the succinylcholine effect had disappered. Prior to the administration of d-tubocurarine, the patient's forearm and hand were firmly fixed to a specially constructed metal armboard. The thumb was abducted, fixed and connected to a electrical kymograph, Harvard apparatus. The ulnar nerve was stimulated at the wrist subcutaneous needle electrodes by means of supramaximal stimull from a peripheral nerve stimulator(model 91-M3, Emerson, USA). Square wave of "Train of Four" stimuli of 0.2msec duration were delivered at a frequency of 0.1Hz. The evoked twitch and tracing of the adductor muscle of the thumb was recorded continuously on a electrical kymograph. Upon recovery from the initial dose of succinylcholine, a stable baseline twitch tension was recorded for 15 minuts. At this point a single intravenous injection of d-tubocurarine, either 0.1mg/kg or 0.2mg/kg, was given. The data were plotted as onset time of twitch depression and percentage depression of twitch height and the recovery time of "Train of four" response were analysed in each group. The results were as follows: 1) In d-tubocurarine 0.1mg/kg group: the effect of d-tubocurarine was variable, ranging from no effect on twitch tension to abolition of the twitch response. Mean maximal twitch depression was 59.4%. Recovery index which showed more than 75% twitch depression was 39.9minutes. 2) In d-tubocurarine 0.2mg/kg group: the effect of d-tubocurarine obtained consistent and solid neuromuscular relaxation. Mean maximal twitch depression was 95.2%. Recovery index was 58.1 minutes.
Adult ; Male ; Female ; Humans

No abstract available.
Basal Bodies*

No abstract available.
Basal Bodies*