1.CLOSED REDUCTION OF ZYGOMATIC ARCH FRACTURE WITH EXTERNAL WIRE TRACTION UNDER FLUOROSCOPY.
Kyeong Ho CHO ; Hyun boon CHOI ; Seog Keun YOO ; Byung Pyo YOO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(1):71-77
Recently, facial traumas are increasing due to expansion of motor vehicles and complexity of social life pattern. The zygoma bone is a prominent part of the midface and prone to be traumatized. Numerous approaches for reduction and fixation of zygomatic fractures have been described. Each reduction method has its advantages and disadvantages. The authors employed the external wire traction with fluoroscopy in cases of non-comminuted zygomatic arch fracture. The advantages of this method are a more accurate reduction under direct vision and takes a very short time. This procedure also can reduce the pain and edema after postoperation and possible under local anesthesia. With such method, we obtained satisfactory results cosmetically and functionally.
Anesthesia, Local
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Edema
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Fluoroscopy*
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Motor Vehicles
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Traction*
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Zygoma*
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Zygomatic Fractures
2.Staging of Hepatic Fibrosis: Comparison of Magnetic Resonance Elastography and Shear Wave Elastography in the Same Individuals.
Jeong Hee YOON ; Jeong Min LEE ; Hyun Sik WOO ; Mi Hye YU ; Ijin JOO ; Eun Sun LEE ; Ji Young SOHN ; Kyung Boon LEE ; Joon Koo HAN ; Byung Ihn CHOI
Korean Journal of Radiology 2013;14(2):202-212
OBJECTIVE: To cross-validate liver stiffness (LS) measured on shear wave elastography (SWE) and on magnetic resonance elastography (MRE) in the same individuals. MATERIALS AND METHODS: We included 94 liver transplantation (LT) recipients and 114 liver donors who underwent either MRE or SWE before surgery or biopsy. We determined the technical success rates and the incidence of unreliable LS measurements (LSM) of SWE and MRE. Among the 69 patients who underwent both MRE and SWE, the median and coefficient of variation (CV) of the LSM from each examination were compared and correlated. Areas under the receiver operating characteristic curve in both examinations were calculated in order to exclude the presence of hepatic fibrosis (HF). RESULTS: The technical success rates of MRE and SWE were 96.4% and 92.2%, respectively (p = 0.17), and all of the technical failures occurred in LT recipients. SWE showed 13.1% unreliable LSM, whereas MRE showed no such case (p < 0.05). There was moderate correlation in the LSM in both examinations (r = 0.67). SWE showed a significantly larger median LSM and CV than MRE. Both examinations showed similar diagnostic performance for excluding HF (Az; 0.989, 1.000, respectively). CONCLUSION: MRE and SWE show moderate correlation in their LSMs, although SWE shows higher incidence of unreliable LSMs in cirrhotic liver.
Adolescent
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Adult
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Elasticity Imaging Techniques/*methods
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Female
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Humans
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Linear Models
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Liver Cirrhosis/*diagnosis/ultrasonography
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*Liver Transplantation
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*Living Donors
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*Magnetic Resonance Imaging
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Male
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Middle Aged
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ROC Curve
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Sensitivity and Specificity