Background. The purpose of this retrospective study is to evaluate the color Doppler US (CDUS) findings of Budd-Chiari Syndrome (BCS) associated with hydatid disease of the liver (HDL) with a special emphasis on the intrahepatic venous collateralisation. Methods. Digitally stored CDUS videoclips or videotape records of the liver of 13 patients with HDL and BCS were retrospectively reviewed. A s...

AIMS The objective of the study was to compare the efficiency of 20 MHz skin ultrasonography and 40 MHz conventional ultrasonography in the assessment of plaque psoriasis and to assess the efficiency of 40 MHz real-time sonoelastography in the early detection of steroid-induced skin atrophy in psoriatic plaques. PATIENTS AND METHODS Ultrasonographic blinded evaluation was performed on 16 plaq...

Subependymal heterotopia consist of gray matter nodules along the lateral ventricular walls and are associated with epilepsy and other cerebral malformations. Some cases have an X-linked inheritance, and early antenatal diagnosis of affected fetuses is important for appropriate management. We present a case of heterotopia diagnosed by sonography and MR imaging at 23 weeks' gestation and discuss...

Echoencephalographic examinations of the brain, first reported by Leksell [1] in 1956, were initially limited to A-mode determinations of midline shifts. In 1963, de Vlieger et al. [2] introduced bistable, two-dimensional imag ing 8-mode. With the advent of modern gray-scale techniques, the quality of sonographic scans improved markedly, and 8-scan imaging of the intrac ranial contents, perform...

background: jaw bone quality plays an essential role in treatment planning and prognosis of dental implants. regarding several available methods for bone density measurements, they are not routinely used before implant surgery due to hard accessibility. objective: an in vitro investigation of correlation between average gray scale in direct digital radiographs and hounsfield units in ct-scan pr...

Efficient implementation of morphological operations requires the decomposition of structuring elements into the dilation of smaller structuring elements. Zhuang and Haralick (1986) presented a search algorithm to find optimal decompositions of structuring elements in binary morphology. We use the concepts of Top of a set and Umbra of a surface to extend this algorithm to find an optimal decomp...