Lower Extremity Arterial Mapping: Duplex Ultrasound as an Alternative to Arteriography Prior to Femoral and Popliteal Reconstruction

2010 ◽  
pp. 89-98
Author(s):  
Enrico Ascher ◽  
Sergio X. Salles-Cunha ◽  
Natalie Marks ◽  
Anil Hingorani
Keyword(s):  
Lower Extremity ◽  
Duplex Ultrasound

scholarly journals Retraction Note: Association of severity of coronary artery disease by SYNTAX score (SS) and lower extremity arterial disease by duplex ultrasound (DUS) study—an Indian perspective

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Saumen Nandi ◽  
Anindya Mukherjee ◽  
Dibbendhu Khanra ◽  
Kaushik Biswas
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Lower Extremity ◽  
Duplex Ultrasound ◽  
Arterial Disease ◽  
Syntax Score ◽  
Lower Extremity Arterial Disease ◽  
Retraction Notice ◽  
Artery Disease ◽  
Indian Perspective

This article has been retracted. Please see the Retraction Notice for more detail: https://doi.org/10.1186/s43044-020-00091-z.

Duplex Ultrasound Evaluation of Lower Extremity Venous Insufficiency

2003 ◽  
Vol 14 (10) ◽  
pp. 1233-1241 ◽  
Author(s):  
Robert J. Min ◽  
Neil M. Khilnani ◽  
Piyush Golia
Keyword(s):  
Lower Extremity ◽  
Venous Insufficiency ◽  
Duplex Ultrasound ◽  
Ultrasound Evaluation

scholarly journals Acute Deep Vein Thrombosis and Association with Popliteal Fossa (Baker's) Cysts in Patients with Lower Extremity Duplex Ultrasound Examination

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 9-10
Author(s):  
Danielle Vlazny ◽  
Damon E. Houghton ◽  
Ryan Meverden ◽  
Paul Daniels ◽  
Matthew Bartlett ◽  
...  
Keyword(s):  
Deep Vein Thrombosis ◽  
Lower Extremity ◽  
Sensitivity And Specificity ◽  
Mayo Clinic ◽  
Duplex Ultrasound ◽  
Popliteal Fossa ◽  
Popliteal Vein ◽  
Vein Thrombosis ◽  
Radiology Reports ◽  
Deep Vein

Background: Popliteal fossa cysts (PFCs aka Baker's cysts) are synovial cysts of the knee joint that can be symptomatic or asymptomatic and incidentally identified on ultrasound. Whether PFCs are associated with deep vein thrombosis (DVT) is unknown. Possible mechanisms for an association include direct compression of the popliteal vein, indirect compression on the popliteal vein with leg flexion, adjacent inflammation of the cyst, or relative immobility due to underlying joint disease itself. Methods: Lower extremity venous Duplex ultrasound radiology reports from the inception of electronic archiving through 11/14/2019 were evaluated across the Mayo Clinic Enterprise (Rochester MN, Jacksonville, FL, Scottsdale AZ, and Mayo Clinic Health System) in patients >18 years of age. Natural language processing (NLP) algorithms were created and validated to identify acute DVT (proximal or distal) and PFCs. A random sample of 1,752 ultrasound reports underwent manual review to calculate the sensitivity and specificity of the NLP algorithm. Cases (ultrasounds with acute DVT) were compared to controls (ultrasound without acute DVT) to examine the frequency of PFCs. IRB approval was obtained and patients lacking Minnesota research authorization were excluded. Results: A total of 332,016 lower extremity venous ultrasounds were performed in 223,035 patients; 156,846 unilateral and 175,170 bilateral lower extremities exams. The mean age at ultrasound was 63.3 (SD 16.5) and 54.7% were female. Ultrasound reports were available for analysis starting in 1992 with a significant increase in the number of ultrasounds performed over the study period across the enterprise (Figure 1). Overall, acute DVT was identified in 24,179 (7.3%) of ultrasounds, and PFCs were identified in 32,427 (9.8%) of ultrasounds. The sensitivity and specificity of the NLP algorithm in the full dataset to identify acute DVT was 86.0% and 97.2%, respectfully. The sensitivity and specificity of the NLP algorithm to identify PFCs was 97.8% and 99.5%, respectively. PFCs were present in 9.3% of ultrasounds with acute DVT and 9.8% of ultrasounds without acute DVT (p=0.007), OR 0.94 (95% CI 0.90-0.98). In a multivariate logistic regression model, after adjusting for age and sex, results remained significant (aOR 0.95, 95% CI 0.91-0.995). Comparing ultrasounds before and after 2010, there was a higher percentage of PFCs and acute DVT reported after 2010 (p<0.001 for both). Sensitivity analyses comparing results before or after 2010, by sex, and only in the first ultrasound performed per person, demonstrated similar results. Conclusions: PFCs are negatively associated with the presence of acute DVT on lower extremity venous Duplex ultrasound. This data does not support PFCs as a contributing or causative factor in the development of lower extremity DVT. Figure 1 Disclosures No relevant conflicts of interest to declare.

Lower Extremity Blood Flow Velocity in Obese versus Nonobese Pregnant Women

2019 ◽  
Vol 37 (04) ◽  
pp. 384-389 ◽  
Author(s):  
Eryn H. Dutta ◽  
Ralph N. Burns ◽  
Luis D. Pacheco ◽  
Caroline C. Marrs ◽  
Aristides Koutrouvelis ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Pregnant Women ◽  
Lower Extremities ◽  
Duplex Ultrasound ◽  
Volume Flow ◽  
Venous Stasis ◽  
Chi Square ◽  
Mean Velocity ◽  
Venous Flow ◽  
Increased Risk

Objective Obesity and pregnancy are risk factors for venous thromboembolism (VTE). In nonpregnant individuals, abdominal obesity is associated with venous insufficiency. This study aimed to compare venous Doppler volume flow and velocity in the lower extremities of obese versus nonobese women. Study Design A prospective cohort study was performed. Duplex ultrasound examined bilateral lower extremity venous flow and velocity (time-averaged mean velocity, TAMV). Flow was analyzed at the superficial femoral (SFV), distal external iliac (DEI), common femoral, profunda femoris, and popliteal veins. Mann–Whitney U-test, Spearman's correlation, and chi-square tests were used, with a significance of p < 0.05. Results Left SFV TAMV and volume flow were higher in the obese group (5.1 [4.1–5.7] vs. 2.8 [1.7–3.4] cm/second; p < 0.001) and (89 [73–119] vs. 48 [26–62] cm/minute; p = 0.005). Significant differences were noted for right DEI flow (obese 326 [221–833] vs. nonobese 182 [104–355] cm/minute; p = 0.049). The right femoral profunda flow was also higher in obese (49 [40–93] cm/minute) compared with nonobese (31 [22–52] cm/minute; p = 0.041). Conclusion Volume flow and TAMV in the lower extremities of obese gravidas are higher compared with nonobese ones. Thus, the increased risk of VTE among obese pregnant women may not be caused by venous stasis.

Lower Extremity Revascularization without Preoperative Contrast Arteriography: Experience with Duplex Ultrasound Arterial Mapping in 485 Cases

2002 ◽  
Vol 16 (1) ◽  
pp. 108-114 ◽  
Author(s):  
Enrico Ascher ◽  
Anil Hingorani ◽  
Natalia Markevich ◽  
Tatiana Costa ◽  
Shreedhar Kallakuri ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Duplex Ultrasound ◽  
Lower Extremity Revascularization

Duplex Evaluation Following Femoropopliteal Angioplasty and Stenting: Criteria and Utility of Surveillance

2012 ◽  
Vol 46 (5) ◽  
pp. 353-357 ◽  
Author(s):  
Donald T. Baril ◽  
Luke K. Marone
Keyword(s):  
Lower Extremity ◽  
Velocity Ratio ◽  
Peak Systolic Velocity ◽  
Duplex Ultrasound ◽  
Standard Of Care ◽  
Endovascular Interventions ◽  
Routine Surveillance ◽  
Angioplasty And Stenting ◽  
Aneurysm Repair ◽  
Stent Stenosis

Surveillance following lower extremity bypass, carotid endarterectomy, and endovascular aortic aneurysm repair has become the standard of care at most institutions. Conversely, surveillance following lower extremity endovascular interventions is performed somewhat sporadically in part because the duplex criteria for recurrent stenoses have been ill defined. It appears that duplex surveillance after peripheral endovascular interventions, as with conventional bypass, is beneficial in identifying recurrent lesions which may preclude failure and occlusion. In-stent stenosis following superficial femoral artery angioplasty and stenting can be predicted by both peak systolic velocity and velocity ratio data as measured by duplex ultrasound. Duplex criteria have been defined to determine both ≥50% in-stent stenosis and ≥80% in-stent stenosis. Although not yet well studied, it appears that applying these criteria during routine surveillance may assist in preventing failure of endovascular interventions.

scholarly journals Results of a Modified Lower Extremity Venous Duplex Ultrasound Protocol for Patients With Coronavirus Disease 2019

2021 ◽  
Vol 74 (3) ◽  
pp. e87
Author(s):  
Jessie Ho ◽  
Calvin Chao ◽  
Ashley Vavra ◽  
Mark Eskandari ◽  
Katherine Hekman ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Duplex Ultrasound

A Novel Scoring System for Lower-extremity Venous Pathology Analysed Using Magnetic Resonance Venography and Duplex Ultrasound

2012 ◽  
Vol 27 (1_suppl) ◽  
pp. 163-170 ◽  
Author(s):  
C W K P Arnoldussen ◽  
I Toonder ◽  
C H A Wittens
Keyword(s):  
Magnetic Resonance ◽  
Lower Extremity ◽  
Scoring System ◽  
Imaging Techniques ◽  
Vena Cava ◽  
Duplex Ultrasound ◽  
Venous System ◽  
Magnetic Resonance Venography ◽  
Chronic Venous Disease ◽  
Venous Disease

Objectives: To present a novel scoring system for lower-extremity venous pathology (the LOVE score) and our experiences using it in our clinical practice to identify venous pathology with duplex ultrasound (DUS) and magnetic resonance venography (MRV). Method: A total of 40 patients, 30 suspected of chronic venous disease and 10 with acute deep vein thrombosis (DVT) were examined from the inferior vena cava (IVC) to the popliteal vein using DUS and MRV. The image findings were reported using the LOVE score. Results The majority of deep veins (368 out of 378 segments) were completely visualized by both our imaging techniques and could be analysed using the LOVE score. Both imaging techniques reported comparable findings with regard to the visualization of thrombus, obstruction, collaterals, trabeculations, anatomic variations and central venous compression (e.g. May–Thurner). Conclusions: The LOVE score can be used to expand and standardize the documentation of imaging the deep venous system beyond thrombosis, to help identify (optimal) treatment options in patients with venous disease, in both the clinical and research setting. This first assessment shows that both DUS and MRV are capable of systematically identifying a multitude of changes in the venous system.

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