2.Method of tumor volume evaluation using magnetic resonance imaging for outcome prediction in cervical cancer treated with concurrent chemotherapy and radiotherapy.
Radiation Oncology Journal 2012;30(2):70-77
PURPOSE: To evaluate the patterns of tumor shape and to compare tumor volume derived from simple diameter-based ellipsoid measurement with that derived from tracing the entire tumor contour using region of interest (ROI)-based 3D volumetry with respect to the prediction outcome in cervical cancer patients treated with concurrent chemotherapy and radiotherapy. MATERIALS AND METHODS: Magnetic resonance imaging was performed in 98 patients with cervical cancer (stage IB-IIIB). The tumor shape was classified into two categories: ellipsoid and non-ellipsoid shape. ROI-based volumetry was derived from each magnetic resonance slice on the work station. For the diameter-based surrogate "ellipsoid volume," the three orthogonal diameters were measured to calculate volume as an ellipsoid. RESULTS: The more than half of tumor (55.1%) had a non-ellipsoid configuration. The predictions for outcome were consistent between two volume groups, with overall survival of 93.6% and 87.7% for small tumor (<20 mL), 62.9% and 69.1% for intermediate-size tumor (20-39 mL), and 14.5% and 16.7% for large tumors (> or =40 mL) using ROI and diameter based measurement, respectively. Disease-free survival was 93.8% and 90.6% for small tumor, 54.3% and 62.7% for intermediate-size tumor, and 13.7% and 10.3% for large tumor using ROI and diameter based method, respectively. Differences in outcome between size groups were statistically significant, and the differences in outcome predicted by the tumor volume by two different methods. CONCLUSION: Our data suggested that large numbers of cervical cancers are not ellipsoid. However, simple diameter-based tumor volume measurement appears to be useful in comparison with ROI-based volumetry for predicting outcome in cervical cancer patients.
Disease-Free Survival
;
Humans
;
Magnetic Resonance Imaging
;
Magnetic Resonance Spectroscopy
;
Magnetics
;
Magnets
;
Tumor Burden
;
Uterine Cervical Neoplasms
3.Diagnosis and treatment of edema.
Korean Journal of Medicine 2005;69(5):574-577
No abstract available.
Diagnosis*
;
Diuretics
;
Edema*
4.Multidrug Resistance in Cancer Chemotherapy.
Yeungnam University Journal of Medicine 1996;13(1):11-21
No abstract available.
Drug Resistance, Multiple*
;
Drug Therapy*
5.Isolation of GTP binding from bovine brain.
Yeungnam University Journal of Medicine 1993;10(2):360-368
GTP binding protein (G-protein) associated with membrane and involved in signal transduction was isolated from bovine brain, and molecular weight of G protein was observed. As the results, cell membranes were homogenized from bovine brain tissues and proteins of membrane were gained using 1% cholate, and progressed the chromatography. The purification process was performed by step, DEAE-Sephacel, Ulttrogel AcA 34 and heptylamine-Sepharose column chromatography. The chromatographic fractions were confirmed by GTP binding assay and SDS-polyacrylamide gel electrophoresis. Molecular weight of Goa was revealed 39,000 dalton and GR 36,000 dalton. One more step of heptylamine-Sepharose was enforced to purify the GTP binding protein. Finally I gained the GTP binding protein isolated subtype of Goalpha and Gbeta.
Brain*
;
Cell Membrane
;
Cholates
;
Chromatography
;
Electrophoresis
;
GTP-Binding Proteins
;
Guanosine Triphosphate*
;
Membranes
;
Molecular Weight
;
Signal Transduction
6.The Effect of Cuff Volume of Laryngeal Mask Airway on Cuff Pressure and Ventilation.
Korean Journal of Anesthesiology 1997;33(6):1037-1041
BACKGROUND: The cuff inflation of laryngeal mask airway (LMA) with excessive volume of air may injure soft tissue and nerves around hypopharynx because of high cuff pressure. But it is not well known about adequate cuff volume of LMA. The cuff inflation of LMA in hypopharynx accomodate pharynx, so various injection volume may differ in sealing effect. This may influence ventilation. This study was proposed to investigate the effect of cuff volume on cuff pressure and ventilation when LMA inserted. METHODS: Fifteen male patients were inserted with #4 LMA, fifteen female patients were inserted #3 LMA. For male patients, 10, 20, 30 and 40 ml of air were injected into cuff of LMA and 10, 15, 20 and 25 ml for female patients. Cuff pressure, minute ventilation and airway pressure were randomly measured. RESULTS: Volume of injected into cuff and cuff pressure of LMA were closly related. But minute ventilation and airway pressure were not related with injected air volume of LMA. CONCLUSION: Excessive volume of air injected to LMA cuff was not beneficial to ventilation. So minimal sealing cuff volume under maximal recommended volume of LMA may reduce the incidence of complications associated with high cuff pressure.
Female
;
Humans
;
Hypopharynx
;
Incidence
;
Inflation, Economic
;
Laryngeal Masks*
;
Male
;
Pharynx
;
Ventilation*
8.Psychiatric education in U.S. Medical Schools.
Journal of Korean Neuropsychiatric Association 1993;32(5):611-620
No abstract available.
Education*
;
Schools, Medical*
9.Signal Transduction.
Yeungnam University Journal of Medicine 1989;6(1):9-19
No abstract available.
Signal Transduction*
10.Recent Trend in Treatment of Atopic Dermatitis.
Journal of the Korean Medical Association 1997;40(3):318-322
No abstract available.
Dermatitis, Atopic*