Duplex doppler ultrasonography of the intrarenal arteries: Normal and pathological findings (In French)

1992 ◽  
Vol 16 (3) ◽  
pp. 218
Keyword(s):  
Doppler Ultrasonography ◽  
Pathological Findings ◽  
Duplex Doppler

scholarly journals Resistive Index of Intrarenal Artery in Evaluation of Diabetic Nephropathy

2016 ◽  
Vol 41 (3) ◽  
pp. 125-130
Author(s):  
Mahbuba Shirin ◽  
Mofazzal Sharif ◽  
Ayeshna Gurung ◽  
Anindita Datta
Keyword(s):  
Diabetes Mellitus ◽  
Diabetic Nephropathy ◽  
Serum Creatinine ◽  
Renal Dysfunction ◽  
Doppler Ultrasonography ◽  
Resistive Index ◽  
Diabetic Patients ◽  
Type I ◽  
The Mean ◽  
Duplex Doppler

Diabetes mellitus is one of the systemic diseases affecting the kidneys. Diabetic nephropathy is a serious microvascular complication of diabetes mellitus. It is the most important cause of death in type I diabetic patients, of whom 30%-40% eventually develop end-stage renal failure and 40% of type II diabetics are at risk of developing diabetic nephropathy. So, diagnosis of diabetic nephropathy is paramount for the survivability of the diabetic patients not only because of the consequences of renal progression but also because of the strong association with the risk of developing cardiovascular disease. A total number of 53 subjects were enrolled in this present cross sectional study in the department of Radiology and Imaging, Bangabandhu Sheikh Mujib Medical University (BSMMU) in collaboration of Nephrology and Medicine of the same institution during two years (2011-13) aim to evaluate the diagnostic usefulness of renal resistive index (RI) by duplex Doppler ultrasonography for detection of renal dysfunction in diabetic patients. Clinically diagnosed diabetic patients having diabetic nephropathy referred to the department of Radiology and Imaging in BSMMU for ultrasonography of Kidneys, Ureters and Bladder (KUB) region or whole abdomen were selected as sample. Biochemical reports (Serum creatinine and Urinary albumin) and the RI value of intrarenal artery were correlated and analyzed. Only those patients biochemically were diagnosed as having diabetic nephropathy was included. Those with incomplete data, hydro nephrosis and renal calculus were excluded. Both the kidneys were visualized by commercially available real time scanner (GE Voluson) equipped with a curvilinear transducer operating at 3.5 MHz First Gray scale ultrasonography was done followed by Color Doppler of intra renal artery and then RI was measured. Majority (45.3%) patients were in 6th decade with the mean age was of 52.66±7.4 years and ranging from 38 to 65 years in patients. Male was found to be 54.7% of diabetic patients with male to female ratio 1.2:1. Resistive index of (? 0.7) was found in 73.6% patients with diabetes with the mean resistive index of 0.71±0.04. Positive correction between resistive index with serum creatinine (r=0.581, p<0.01) and albuminuria (r=0.725, p<0.01) were observed. It can be concluded that Resistive Index measured by duplex Doppler ultrasonography is useful diagnostic modality for detection of renal dysfunction in diabetic nephropathy patients. Resistive Index has value in identifying diabetic patients who are developing nephropathy and can be used as an additional diagnostic tool. Also it is well correlated with Serum Creatinine and Albuminuria which are the biochemical parameters to diagnose diabetic nephropathy.

scholarly journals Duplex doppler ultrasonography in the diagnosis of deep venous thrombosis of the lower extremities

2006 ◽  
Vol 59 (1-2) ◽  
pp. 11-14 ◽  
Author(s):  
Viktorija Vucaj-Cirilovic ◽  
Kosta Petrovic ◽  
Olivera Nikolic ◽  
Viktor Till ◽  
Dijana Niciforovic ◽  
...  
Keyword(s):  
Venous Thrombosis ◽  
Deep Venous Thrombosis ◽  
Doppler Ultrasonography ◽  
Varicose Veins ◽  
Color Doppler ◽  
Lower Extremities ◽  
Postthrombotic Syndrome ◽  
Duplex Doppler ◽  
Age Range

Introduction. The aim of this study was to investigate the role of duplex Doppler ultrasonography in diagnosis of deep venous thrombosis (DVT) of the lower extremities. Material and methods. During a 2-year period, 860 patients were examined by duplex Doppler sonography. Among these, 619(72%) were women and 241 (28%) men, with the age-range of 16-91; (mean 56,2) years. Siemens Versa Pro color doppler was used, with 7MHz transducers. Findings were categorized into four categories: 1. deep venous thrombosis (DVT); 2. pathology predominantly related to superficial veins without DVT; 3. pathology of superficial and deep veins; 4. normal findings. Results. 185 (21%) patients had DVT, 366 (42.5%) patients had pre?dominant pathology of superficial veins: postthrombotic syndrome, superficial thrombophlebitis and varicose veins. 128 (14.9%) patients had pathology of superficial and deep veins. Normal findings were found in 181 (21.1%) patients. Conclusions. Various vascular and nonvascular diseases may mimic deep venous thrombosis, and that is why US should be used whenever possible to avoid unnecessary anticoagulant therapy. .

Duplex-Doppler ultrasonography in the assessment of portal hypertension. Utility of the measurement of maximum portal flow velocity

1993 ◽  
Vol 17 (2) ◽  
pp. 126-129 ◽  
Author(s):  
Piero D'Alimonte ◽  
Giorgio Cioni ◽  
Alessandro Cristani ◽  
Alberto Ferrari ◽  
Ezio Ventura ◽  
...  
Keyword(s):  
Portal Hypertension ◽  
Flow Velocity ◽  
Doppler Ultrasonography ◽  
Portal Flow ◽  
Duplex Doppler

Surveillance of Arteriovenous Accesses with the use of Duplex Doppler Ultrasonography

2014 ◽  
Vol 15 (7_suppl) ◽  
pp. 28-32 ◽  
Author(s):  
Jan Malik ◽  
Jaroslav Kudlicka ◽  
Ludmila Novakova ◽  
Josef Adamec ◽  
Hana Malikova ◽  
...  
Keyword(s):  
Doppler Ultrasonography ◽  
Duplex Doppler

Evaluation of gastrointestinal activity in healthy rabbits by means of duplex Doppler ultrasonography

2019 ◽  
Vol 80 (7) ◽  
pp. 657-662 ◽  
Author(s):  
Trisha J. Oura ◽  
Jennifer E. Graham ◽  
S. Emi Knafo ◽  
Stacie Aarsvold ◽  
Jay N. Gladden ◽  
...  
Keyword(s):  
Doppler Ultrasonography ◽  
Duplex Doppler ◽  
Gastrointestinal Activity

Gastric varices: diagnosis with duplex Doppler ultrasonography: a case report

1992 ◽  
Vol 33 (2) ◽  
pp. 189 ◽  
Author(s):  
Won Ho Kim ◽  
Ki Baik Hahm ◽  
Young Myung Moon ◽  
Jin Kyung Kang ◽  
In Suh Park ◽  
...  
Keyword(s):  
Case Report ◽  
Doppler Ultrasonography ◽  
Gastric Varices ◽  
Duplex Doppler

Arteriovenous Grafts: Early Ultrasonography Tells Their Fortune

2015 ◽  
Vol 41 (4-5) ◽  
pp. 420-425 ◽  
Author(s):  
Jaroslav Kudlicka ◽  
Jan Malik ◽  
Vladimir Tuka ◽  
Eva Chytilova ◽  
Zdislava Krupickova ◽  
...  
Keyword(s):  
Risk Factor ◽  
Doppler Ultrasonography ◽  
Primary Outcome Measure ◽  
Low Flow ◽  
Surveillance Strategy ◽  
Venous Anastomosis ◽  
Significant Stenosis ◽  
Arteriovenous Grafts ◽  
Duplex Doppler

Background: The patency of arteriovenous grafts (AVG) for hemodialysis is mostly limited by growing stenoses that lead to decreasing of blood flow, thromboses and finally to access failure. The aim of this study was to find out if detection of any pathology by duplex Doppler ultrasonography (DDU) early after creation of AVG could identify those with lower survival. Methods: We retrospectively enrolled AVG examined by DDU in our center within 40 days after their creation during the last 10 years. The findings were divided into 4 subgroups: (1a) normal finding, (1b) DDU risk factor (low flow volume, medial calcinosis of the feeding artery, presence of intimal hyperplasia in the venous anastomosis), (2a) non-significant or (2b) significant stenosis. The primary outcome measure was the cumulative survival of people with AVGs, and the secondary was the primary (unassisted) survival. All patients underwent DDU surveillance every 3 months with pre-emptive treatment of significant stenoses. Results: Overall, 340 cases were found; the median follow-up was 565 days. Normal DDU finding had 60% cases, DDU risk factor 18% cases, non-significant stenosis 13% cases and significant stenosis 9% cases. Occurrence of early significant stenosis was associated with high risk of access loss (hazards ratio (HR) 14.73; 95% CI 5.10-42.58; p < 0.0001). Similarly, the presence of a DDU risk factor and of a non-significant stenosis were related to significantly shorter access lifespan (HR 2.86; 95% CI 1.10-7.40; p = 0.03 and HR 2.83; 95% CI 1.12-7.17; p = 0.03, respectively). Conclusion: DDU examination of AVG early after their creation can identify those at higher risk and may contribute to individualize the surveillance strategy.

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