Ultrasound characteristics of abdominal vascular compression syndromes.

Abdominal vascular compression syndrome (AVCS) is caused by the compression of abdominal blood vessels by adjacent structures or the compression of abdominal organs by neighboring blood vessels. Such compressions can result in a variety of clinical symptoms. They are not commonly seen in ultrasound practices, and their presence may have been underrecognized and underdiagnosed.

Detection of Abnormal Wall Shear Stress and Oscillatory Shear Index via Ultrasound Vector Flow Imaging as Possible Indicators for Arteriovenous Fistula Stenosis in Hemodialysis.

Objective: The arteriovenous fistula (AVF) is an essential vascular access for hemodialysis patients. AVF stenosis may occur at sites with abnormal wall shear stress (WSS) and oscillatory shear index (OSI), which are caused by the complex flow in the AVF. At present, an effective method for rapid determination of the WSS and OSI of the AVF is lacking.

Phasicity and resistance of the arterial spectral Doppler waveform in a canine femoral focal artery stenosis model.

Introduction: This study aims to evaluate changes in the arterial spectral Doppler waveform in a canine artery stenosis model.

Methods: Canine femoral artery stenosis models were established in 12 beagle dogs. Doppler waveforms were recorded in the femoral artery preoperatively and postoperatively in the femoral artery and at the ankle after formation of a 50%, 70%, and 90% stenosis or occlusion.

Corrigendum: Quantitative evaluation of post-stenotic blood flow disturbance in canine femoral artery stenosis model: An early experience with vector flow imaging.

[This corrects the article DOI: 10.3389/fcvm.2022.

Quantitative Evaluation of Post-stenotic Blood Flow Disturbance in Canine Femoral Artery Stenosis Model: An Early Experience With Vector Flow Imaging.

Objective: To investigate the value of Vector Flow Imaging (V Flow) in the assessment of post-stenotic turbulence in the canine arterial stenosis model.

Materials And Methods: Canine femoral artery stenosis models were established using ameroid constrictors in 12 beagle dogs. 50% and then 70% femoral artery stenoses were confirmed by selective femoral artery angiography.

Effectiveness of distal arterial bypass with porcine decellularized vascular graft for treating diabetic lower limb ischemia.

Background: Application of tissue engineered vascular grafts for small-diameter artery reconstruction has been a much anticipated advance in vascular surgery. The aim of this study is to assess the effectiveness of small-diameter decellularized vascular grafts in below-knee bypass surgery for diabetic lower extremity ischemia.

Methods: Three patients with diabetic lower limb ischemia were admitted to the Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University between May, 2010 and June, 2010.

Inter-rater Reliability of 4-Item Arterial Doppler Waveform Classification System for Description of Arterial Doppler Waveforms.

Non-invasive Doppler waveform (DW) analysis is a widely adopted method for detecting and evaluating lower extremity peripheral artery disease (PAD). Previous investigations have reported that broad heterogeneity in the description of Doppler waveforms is reduced by using a classification method. The reliability of arterial Doppler classification, however, is unknown.

Seizures caused by pyridoxine (vitamin B6) deficiency in adults: A case report and literature review.

Pyridoxine (vitamin B6) deficiency is a recognised cause of intractable seizures in neonates. However, pyridoxine deficiency related seizures in adults were rarely reported. This article reports a case of a 79 year old lady who suffered from new-onset seizures and was successfully treated with vitamin B6.

Role of duplex ultrasound in the diagnosis and assessment of carotid body tumour: A literature review.

Carotid body tumour is a rare disease, a slow growing highly vascular tumour of the carotid body tissue and the most common type of the paraganglioma. This article reviews the pathological, clinical and ultrasound features of carotid body tumours and discusses the role of duplex ultrasound in the diagnosis and assessment of this condition. The initial presentation of carotid body tumour is usually a painless palpable neck mass.

[Effect of obstructive sleep apnea hypopnea syndrome on arterial stiffness].

Objective: To assess the effect of obstructive sleep apnea hypopnea syndrome (OSAHS) on brachial-ankle pulse wave velocity (b-aPWV) in untreated diagnosed patients.

Methods: This study involved 24 consecutive male patients with newly diagnosed untreated OSAHS (aged 39.13±8.