The use of quantitative Doppler ultrasonography to predict posthepatectomy complications on the basis of hepatic hemodynamic parameters

Surgery ◽  
2002 ◽  
Vol 132 (3) ◽  
pp. 431-440 ◽  
Author(s):  
Hiroyuki Sugimoto ◽  
Tetsuya Kaneko ◽  
Shin Takeda ◽  
Soichiro Inoue ◽  
Akimasa Nakao
Keyword(s):  
Doppler Ultrasonography ◽  
Hemodynamic Parameters ◽  
Hepatic Hemodynamic

scholarly journals Sensitivity of hemodynamic parameters obtained by conventional duplex scanner in the evaluation of extracranial carotid disease severity

2003 ◽  
Vol 60 (4) ◽  
pp. 435-442
Author(s):  
Gordana Arandjelovic-Minic
Keyword(s):  
Spectral Analysis ◽  
Carotid Stenosis ◽  
Doppler Ultrasonography ◽  
Screening Method ◽  
Statistical Processing ◽  
Mean Value ◽  
Hemodynamic Parameter ◽  
Hemodynamic Parameters ◽  
Carotid Disease ◽  
Significant Independent Predictor

Progresson of extracranial carotid disease is considered to be significant independent predictor in the evaluation of individual cerebrovascular prognosis. Doppler ultrasonography is a useful screening method in the diagnosis and evaluation of extracranial carotid disease. The aim of this study was to establish the most sensitive hemodynamic parameter of Doppler-ultrasonographic spectral analysis in clinical evaluation of extracranial carotid disease. Investigation included 90 patients (of both sexes) in hospital and outpatient clinic care. Spectral analysis (M-scanning technique) was used for the evaluation of hemodynamic status of carotid sinus, including the following parameters: Pourcelot (A-D/A), Gosling (A/B) and Mol (A/D) resistance parameters. After statistical processing the results of the research affirmed hemodynamic parameters' values and correlation between Pourcelot hemodynamic parameter and the degree of carotid stenosis ?=0,59 for all patients, and ?=0,58 for patients with pathological values. Correlation between Mol parameter and the degree of carotid stenosis was ?=0,50 for all patients, and ?=0,57 for patients with pathological values. Gosling parameter was not significantly different in mean value and was present in all three groups. Functional relationship between the degree of carotid stenosis and each of hemodynamic parameters was established. It was concluded that Pourcelot and Mol parameters were significant indicators of asimptomatic carotid disease, but Pourcelot parameter was considered as a more sensitive indicator in the evaluation of extracranial carotid disease.

scholarly journals Ultrasonografic monitoring of hemodynamic parameters in symptomatic and asymptomatic patients with high-grade carotid stenosis prior and following carotid endarterectomy

2012 ◽  
Vol 69 (5) ◽  
pp. 399-404 ◽  
Author(s):  
Anka Mitrasinovic ◽  
Jovo Kolar ◽  
Sandra Radak ◽  
Dragoslav Nenezic ◽  
Ivana Kupresanin ◽  
...  
Keyword(s):  
Blood Flow ◽  
Carotid Endarterectomy ◽  
Carotid Stenosis ◽  
Diagnostic Tool ◽  
Doppler Ultrasonography ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Hemodynamic Parameters ◽  
Diagnostic Modality ◽  
Asymptomatic Patients

Background/Aim. Doppler ultrasonography is now a reliable diagnostic tool for noninvasive examination of the morphology and hemodynamic parameters of extracranial segments of blood vessels that participate in the brain vascularisation. This diagnostic modality in recent years become the only diagnostic tool prior to surgery. The aim of the study was to determine hemodynamic status in symptomatic and asymtomatic patients with severe carotid stenosis prior to and after carotid endarterectomy (CEA). Methods. A total of 124 symptomatic and 94 asymptomatic patients who had underwent CEA at the Clinic for Cardiovasculare Disease ?Dedinje? in Belgrade were included in this study. Doppler ultrasonography examinations were performed one day before CEA and seven days after it. The peak systolic velocity (PSV), end-dyastolic velocity (EDV), time-averaged maximum blood flow velocity (MV), resistance index (RI) and the blood flow volume (BFV) of the ipsilateral and the contralateral internal carotid artery (ICA) were measured. Results. Diabetes was the only risk factor found significantly more frequent in symptomatic patients. There were significantly more occluded contralateral ICAs in the group of symptomatic patients. There was a significant increase in PSV, EDV, MV and BFV of the ipsilateral ICA after CEA and a significant decrease in PSV, EDV, MV and BFV of the contralateral ICA after CEA. RI is the only hemodynamic parameter without significant changes after CEA in both groups of patients. Comparing the values of hemodynamic parameters after CEA between the group of symptomatic and the group of asymptomatic patients no significant differences were found. Conclusion. The occlusion of the contralateral ICA is an important factor differentiating between symptomatic and asymptomatic patients with severe carotid stenosis. Successful surgery provides good recovery of cerebral hemodynamics in both symtomatic and asymptomatic patients.

scholarly journals Monitoring of Systemic and Hepatic Hemodynamic Parameters in Mice

10.3791/51955 ◽  
2014 ◽  
Author(s):  
Chichi Xie ◽  
Weiwei Wei ◽  
Tao Zhang ◽  
Olaf Dirsch ◽  
Uta Dahmen
Keyword(s):  
Hemodynamic Parameters ◽  
Hepatic Hemodynamic

Relationship between Penile Hemodynamic Parameters Assessed by Color Doppler Ultrasonography and Penile Rigidity Recorded by the RigiScan Plus

2004 ◽  
Vol 73 (4) ◽  
pp. 310-312 ◽  
Author(s):  
Ichiro Mizuno ◽  
Hideki Fuse ◽  
Yasuyoshi Fujiuchi ◽  
Osamu Nagakawa ◽  
Takuya Akashi
Keyword(s):  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Hemodynamic Parameters

Doppler Ultrasonography in Searching the Collateral Network in Portal Hypertensive Children

2002 ◽  
Vol 41 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Ebru Yeşildağ ◽  
Firat Çetinkaya ◽  
Sebuh Kuru˙Oğlu ◽  
Osman Faruk şenyüz
Keyword(s):  
Doppler Ultrasonography ◽  
Collateral Network
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