No Abstract Available.
Adult* ; Capsulorhexis* ; Cataract* ; Follow-Up Studies* ; Humans

No Abstract Available.
Cytokines* ; Perforin* ; Shwartzman Phenomenon* ; Vibrio vulnificus* ; Vibrio*

Three-dimensional (3-D) ultrasonographic imaging techniques have recently shown rapid development and theirclinical application has begun to attract considerable at-tention. Power Doppler sonography is known to be moresensitive than color Doppler for detecting blood flow, and there is also less noise and clutter. This paperdescribes the basic principles and initial clinical experience of 3-D power Doppler sonography.
Noise

No abstract available.
Cholangitis*

No abstract available.
Pneumonia* ; Radiography, Thoracic* ; Thorax*

No abstract available.
Brain Neoplasms* ; Brain* ; Tomography, Emission-Computed, Single-Photon*

The purpose of this study is to investigate the effect of the ball-cone contact interface variation on the ceramic ball stress which is the dominant factor of the design of the moldular artificial hip joint. A contact stress analysis problem is formulated using the optimization principle and finite element analysis technique on the ball-cone system of three dimensional axi-symmetrical model, Numerical procedure is employed to get the solution for varying angles of cones and angular mismatches between the ball and cone interfaces. There is a fair amount of friction in the interface and included in the analysis model.
Ceramics ; Finite Element Analysis ; Friction ; Hip Joint ; Hip

Segmental testicular infarction is a rare cause of acute scrotum. Its etiology is not well defined and it can be clinically confused with a testicular tumor. Imaging studies play an important role in the preoperative diagnosis, with a Color doppler ultrasonography as the investigation of choice although magnetic resonance imaging (MRI) can be useful in doubtful cases. We report a case of segmental testicular infarction treated with partial orchiectomy seen in a 58-year-old man with right scrotal pain.
Humans ; Infarction ; Magnetic Resonance Imaging ; Middle Aged ; Orchiectomy ; Scrotum ; Testis ; Ultrasonography, Doppler, Color

PURPOSE: To evaluate the usefulness of screening liver ultrasonography (US) for hepatocellular carcinoma (HCC) detection in patients with chronic hepatitis or hepatic cirrhosis caused by hepatitis B virus (HBV). MATERIALS AND METHODS: A retrospective study was performed with 1,189 patients with clinical hepatopathy caused by HBV who underwent screening liver US for HCC detection at least twice. All patients were followed up with liver US examinations (mean, 8.3 times), CT, or MR for at least 3 months (range, 3-102 months; mean, 47 months) for the detection of HCC. The study population was divided into two groups: chronic hepatitis (n=492) and hepatic cirrhosis (n=697), which was further divided into two groups with (n=156) or without (n=541) evident shrinkage. The radiologic examinations that had detected HCC for the first time were analyzed and compared between the groups. RESULTS: Among 20 (4.1%) patients with chronic hepatitis and 132 (18.9%) patients with hepatic cirrhosis diagnosed as HCC, screening US was the modality of detection in 17 (85.0%) of 20 patients with chronic hepatitis and 76 (57.6%) of 132 patients with hepatic cirrhosis (p=0.038, Chi-square test). The detection rate of HCC on screening US between the chronic hepatitis and hepatic cirrhosis with evident shrinkage (51.4%, 19/37) showed a significant difference (p=0.027, Chi-square test). CONCLUSION: For chronic liver disease caused by HBV, screening US for HCC detection is more useful in patients with chronic hepatitis than with hepatic cirrhosis with evident shrinkage.
Carcinoma, Hepatocellular* ; Early Detection of Cancer ; Hepatitis B virus* ; Hepatitis B* ; Hepatitis* ; Hepatitis, Chronic* ; Humans ; Liver ; Liver Cirrhosis* ; Liver Diseases ; Mass Screening* ; Retrospective Studies ; Ultrasonography*

Melanotic Schwannoma arising from the acoustic nerve is extremely rare and only three cases have been reported. We report an additional case of melanotic schwannoma occuring at the left cerebellopontine angle in a 53-year-old man presented with left facial numbness and tinnitus. After surgical removal of the mass, there has been no evidence of recurrence for 13 months.
Acoustics* ; Cerebellopontine Angle ; Cochlear Nerve ; Humans ; Hypesthesia ; Middle Aged ; Neurilemmoma ; Neuroma, Acoustic* ; Recurrence ; Tinnitus