نتایج جستجو برای: vascular ultrasonography
تعداد نتایج: 260477 فیلتر نتایج به سال:
Angiogenesis is a prominent feature of rheumatoid synovitis. Formation of new blood vessels permits a supply of nutrients and oxygen to the augmented inflammatory cell mass and so contributes to perpetuation of joint disease. Vascular endothelial growth factor (VEGF) is a potent endothelial cell-specific growth factor that is upregulated by proinflammatory cytokines and by hypoxia. Serum VEGF c...
THE AIM OF THE STUDY was to asses the clinical value of percutaneous abdominal ultrasonography in diagnosis, staging and surgical treatment of patients with pancreatic carcinoma. MATERIAL AND METHODS Prospective clinical trial on diagnostic accuracy of percutaneous abdominal ultrasonography was conducted in 409 consecutive patients with pancreatic cancer which were operated on at the I Dept. ...
OBJECTIVE The main objectives of this study were to evaluate the sensitivity and specificity of duplex Doppler ultrasonography in the study of hemodialysis peripheral vascular access dysfunction and to analyze the resistance index and flow in the afferent artery. MATERIAL AND METHODS We prospectively studied 178 patients with 178 peripheral vascular accesses that were dysfunctional in at leas...
The advantages and inadequacies of the currently available techniques to measure regional blood flow in the lower limbs are being reviewed. Thermodilution technique and local 133xenon washout technique have the advantage of allowing determination of blood flow during exercise, while venous occlusion plethysmography and pulsed-Doppler duplex ultrasonography only allow determination of blood flow...
OBJECTIVE Ultrasonography is an effective tool for making quick diagnoses and guiding therapeutic procedures. National organizations have advocated increasing the use of critical care ultrasonography. The purpose of this study was to investigate the prevalence of teaching of critical care ultrasonography in fellowship programs. In addition, we hoped to identify barriers to establishment of ultr...
OBJECTIVE The aim of this study was to evaluate the prevalence of hemodynamically significant infrainguinal bypasses stenosis using reverse great saphenous vein graft. METHODS From March of 2008 to March of 2009, 56 infrainguinal bypasses were performed with reverse great saphenous vein graft in 56 patients. On the 30th post-operative day, 32 out of 56 patients were submitted to vascular ultr...
We present a 65 year old female patient presented with acute onset of severe left sided abdominal pain associated tender intra-abdominal lump over the flank. An ultrasonography revealed an ectopic spleen in flank and CE-CT scan abdomen confirmed wandering torsion vascular pedicle at hilum. She underwent splenectomy. Wandering is uncommon clinical entity. Review literature was made on different ...
Thromboembolic events represent the main cause of morbidity and mortality in patients with polycythemia vera. Leukocytosis has been identified as an important risk factor for development of vascular thrombosis. A 47-year-old woman with polycythemia vera presented with pain and swelling in her right calf. She was scheduled to receive anagrelide which was effective on polycythemia and thrombocyto...
We performed vascular waveform analysis of flap-feeding vessels using color Doppler ultrasonography and evaluated the blood flow in the flaps prior to surgery. Vascular waveform analysis was performed in 19 patients. The analyzed parameters included the vascular diameter, flow volume, flow velocity, resistance index, pulsatility index, and acceleration time. The arterial waveform was classified...
Placental mesenchymal dysplasia is an underdiagnosed and a rare vascular anomaly of the placenta. It characterized by presence grape-like vesicles, which, on ultrasonography gives appearance partial mole. Histologically it can be differentiated mole absence trophoblastic proliferation. essential to make correct diagnosis as management outcome both these entities are vastly different. We present...
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