Abstract:
:Power Doppler ultrasonography displays an estimate of the entire power contained in that part of the received radiofrequency ultrasound signal for which a phase shift corresponding to the motion of the target is detected. In contrast, conventional color Doppler imaging displays Doppler frequency shift information. Few reports have been published on the clinical utility of three-dimensional power Doppler ultrasonography in vascular patients. This study analyzed our experience of the clinical utility of this technology. Fifty-three patients selected out of 281 who were referred to our vascular laboratory underwent both conventional color duplex ultrasonography and power Doppler ultrasonography for the following indications: the question of subtotal versus total arterial occlusion, tortuous artery with limited imaging on color duplex ultrasonography, the presence of significant disease by Doppler ultrasonography with limited imaging, deep-lying arteries with an obscure orifice (e.g., renal artery), and heavily calcified arteries. The power Doppler ultrasonography portion of the examination was considered of positive diagnostic value if the final impression was different from that of conventional color duplex ultrasonography. A positive diagnostic value was achieved in 22 of 29 (76%) carotid artery examinations, 10 of 14 (71%) peripheral artery examinations, 4 of 5 (80%) renal artery examinations, and 3 of 5 (60%) aortoiliac examinations. Overall, positive diagnostic value was achieved by adding power Doppler ultrasonography in 39 of 53 patients (74%). Five of six patients (83%) who were felt to have carotid occlusion by color duplex ultrasonography were confirmed to have subtotal occlusion by power Doppler ultrasonography. Similarly, 6 of 8 patients (75%) with questionable subtotal versus total peripheral arterial occlusion by color duplex ultrasonography were confirmed to have subtotal occlusion by power Doppler ultrasonography. Four of five patients' (80%) renal examinations had a positive diagnostic value, which included three patients in whom the orifice of renal arteries was not seen by color duplex ultrasonography. Three-dimensional power Doppler ultrasonography can be more readily applied to clinical practice. Power Doppler ultrasonography is capable of defining the severity or extent of vascular disease, particularly in differentiating subtotal from total arterial occlusion.
journal_name
Vascularjournal_title
Vascularauthors
AbuRahma AF,Jarrett K,Hayes DJdoi
10.1258/rsmvasc.12.5.293subject
Has Abstractpub_date
2004-09-01 00:00:00pages
293-300issue
5eissn
1708-5381issn
1708-539Xjournal_volume
12pub_type
杂志文章相关文献
Vascular文献大全abstract:OBJECTIVE:Data about renal artery stenosis association with left ventricular remodeling in patients coexisting with coronary artery disease are scanty. METHODS:Patients with suspected both coronary artery disease and renal artery stenosis undergoing coronary and renal arteriography between October 2013 and December 20...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538118819676
更新日期:2019-04-01 00:00:00
abstract::Objectives The relationship between preoperative medical consultations and postoperative complications has not been extensively studied. Thus, we investigated the impact of preoperative consultation on postoperative morbidity following elective abdominal aortic aneurysm repair. Methods A retrospective review was condu...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538116685946
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVE:Buerger's disease is one of the worst diseases causing peripheral artery occlusions (especially lower extremity) with increased morbidity and mortality. Endovascular treatment of the diseased arteries gains preference over bypass surgery nowadays. Here, we aimed to present the clinical outcomes of 16 consecut...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538118805623
更新日期:2019-06-01 00:00:00
abstract::Structural failure and collapse of thoracic stent grafts may cause fatal complications that are easily overlooked on follow-up imaging. A young man with multiple injuries from a motorcycle crash was treated with endografting for an aortic transection. The clinical course was initially satisfactory but deteriorated one...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1258/vasc.2010.cr0246
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the possibility of using heparin-bonded polycaprolactone grafts to replace small-diameter arteries. METHODS:Polycaprolactone was bonded with heparin. The activated partial thromboplastin time of heparin-bonded polycaprolactone grafts was determined in vitro. Small-diameter grafts were electrospun...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538114550737
更新日期:2015-08-01 00:00:00
abstract::Endovascular aortic aneurysm repair is an effective alternative to open surgical repair in high risk patient. Endotension is an unpredictable late and rare complication of EVAR. Clinical significance and choice of technique for treatment are controversial. At present, there are no cases of endotension-related aneurysm...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538113478725
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:Peripheral arterial disease is associated with increased cardiovascular mortality and morbidity. C-reactive protein and albumin are biomarkers of inflammation and malnutrition that play key roles in the pathophysiological pathways involved in the progression of atherosclerosis and peripheral arterial disease...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538120925952
更新日期:2020-12-01 00:00:00
abstract::Purpose Cyanoacrylate closure of the great saphenous vein with the VenaSeal™ Closure System is a relatively new modality. Studies have been limited to moderate-sized great saphenous veins and some have mandated postoperative compression stockings. We report the results of a prospective study of cyanoacrylate closure f...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538116651014
更新日期:2017-04-01 00:00:00
abstract::We present a 68-year-old female who developed multiple pseudo-aneurysms (PSAs) following cardiac catheterization via the right groin. During subsequent thrombin injection of PSAs, the patient developed acute occlusion of the popliteal artery. A covered stent was placed to obliterate the PSAs and allow for successful e...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538113499328
更新日期:2014-08-01 00:00:00
abstract:OBJECTIVE:Endovascular aneurysm repair has gained field over open surgery for the treatment of abdominal aortic aneurysm. However, type Ia endoleak represents a common complication especially in hostile neck anatomy that is recently faced using endoanchors. We conducted a systematic review and meta-analysis to collect ...
journal_title:Vascular
pub_type: 杂志文章,meta分析
doi:10.1177/1708538120923417
更新日期:2020-10-01 00:00:00
abstract::This article analyzes the complication rates of diagnostic arteriographies performed by a single vascular surgeon and compares them to those previously published by interventional radiologists. Five hundred fifty-eight consecutive patients who underwent diagnostic arteriographies were analyzed. A modification of one s...
journal_title:Vascular
pub_type: 杂志文章
doi:10.2310/6670.2007.00022
更新日期:2007-03-01 00:00:00
abstract:OBJECTIVE:The Nellix EndoVascular Aneurysm Sealing (EVAS) system has offered a novel approach in the treatment of abdominal aortic aneurysm (AAA). While it is currently indicated as a primary procedure in patients with infrarenal AAA with suitable anatomy according to the indications for use, a few studies aimed to add...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538119897525
更新日期:2020-06-01 00:00:00
abstract::Background Prevalence of peripheral arterial disease (PAD) has dramatically increased in both developing, as well as developed countries. However, significant knowledge and practice gaps persist. In Canada, efforts to improve this knowledge level are lacking. In this study, we examine PAD knowledge in Toronto, and eva...
journal_title:Vascular
pub_type: 杂志文章,随机对照试验
doi:10.1177/1708538116689355
更新日期:2017-10-01 00:00:00
abstract:OBJECTIVES:Laser speckle flowgraphy is a technology using reflected scattered light for visualization of blood distribution, which can be used to measure relative velocity of blood flow easily without contact with the skin within a short time. It was hypothesized that laser speckle flowgraphy may be able to identify fo...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538120938935
更新日期:2020-07-08 00:00:00
abstract::This study assessed the effectiveness of a 12-week, institution-based, supervised exercise rehabilitation program with atherogenic risk factor modification in improving cardiovascular profile, ambulatory function, and quality of life of patients with peripheral arterial disease (PAD) by comparing pre- and postprogram ...
journal_title:Vascular
pub_type: 临床试验,杂志文章
doi:10.2310/6670.2010.00053
更新日期:2010-11-01 00:00:00
abstract::This case report describes a rare vascular tumor (epithelioid hemangioma) in the ulnar artery of a young male patient, treated by excision and bypass grafting. ...
journal_title:Vascular
pub_type: 杂志文章
doi:10.2310/6670.2010.00043
更新日期:2010-09-01 00:00:00
abstract::Percutaneous transluminal angioplasty and stenting is being employed with increasing frequency for stenosis involving the brachiocephalic circulation. However, the efficacy of these procedures is limited by intimal hyperplasia and subsequent re-stenosis. Long-term results for treating lesions of the subclavian or inno...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538113478759
更新日期:2014-06-01 00:00:00
abstract:OBJECTIVES:To assess the safety, efficacy, and durability of the Absorb bioresorbable vascular scaffold in predominantly complex, infra-popliteal lesions for the management of chronic limb ischemia at two-year clinical follow-up. Bioresorbable vascular scaffold are biodegradable scaffolds that provide short-term vascul...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538120954947
更新日期:2020-09-14 00:00:00
abstract::The aim of this study was to evaluate middle-term clinical results of robot-assisted laparoscopic surgery (RALS) to treat aortoiliac occlusive disease (AIOD). Between 2002 and 2007, 28 consecutive patients received robot-assisted laparoscopic aortobifemoral bypass grafting (n = 24) or aortoiliac endarterectomy (n = 4)...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1258/vasc.2010.oa0249
更新日期:2011-02-01 00:00:00
abstract:OBJECTIVES:An arteriovenous fistula is the first choice of vascular access in dialysis patients. However, the correlations between patient factors and the arteriovenous fistula patency rate remain unclear. Therefore, we examined the effect of dialysis patient factors on arteriovenous fistula patency rate. METHODS:This...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538120905486
更新日期:2020-08-01 00:00:00
abstract::Ureteric fistula into the arterial tree is a well-recognised, but uncommon condition. The involvement of internal iliac artery is rare. We present a rare case of fistulous communication and subsequent infection of an internal iliac artery aneurysm and ureter secondary to insertion of ureteric stent following endovascu...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538114538623
更新日期:2015-04-01 00:00:00
abstract::Objectives Prior studies examining the effects of statins on arterial aneurysm development and progression yielded conflicting results due to their smaller size and presence of residual confounders. The objective of this study is to examine the association of statins with risk of being diagnosed with aortic, periphera...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538116684942
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVES:Upper extremity arterial access is often required for endovascular procedures, especially for antegrade access to the visceral aortic branches. Radial arterial access has been shown previously to have low complication rates, and patients tolerate the procedure well and are able to recover quickly. However, t...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538118797556
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVES:The aim of this study is to investigate the durability and clinical efficacy of profundoplasty as a sole procedure in patients presenting with critical limb ischaemia associated with profunda femoral artery disease and superficial femoral artery occlusion. METHODS:Retrospective analysis of outcomes from all...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538120963901
更新日期:2020-10-14 00:00:00
abstract::Infected aneurysms of the aorta were first described as a result of septic emboli or contiguous spread from bacterial endocarditis and are usually caused by Staphylococcus or Salmonella species. We report a case of Nocardia-associated infected aneurysm of the native suprarenal aorta in an immunocompromised host. Surgi...
journal_title:Vascular
pub_type: 杂志文章,评审
doi:10.2310/6670.2006.00025
更新日期:2006-05-01 00:00:00
abstract::The incidence of peripheral arterial occlusive disease (PAD) increases with age. Women represent a growing percentage of the elderly population who present with PAD. While speculation exists that gender affects outcome after revascularization procedures, the literature is confusing and often conflicting. This review c...
journal_title:Vascular
pub_type: 杂志文章,评审
doi:10.1258/vasc.2010.ra0042
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVES:Atherosclerosis is considered as a chronic inflammatory disorder where the central role of T cells in its pathogenesis is well known. T helper-9 cells have a distinctive effect upon the inflammatory processes. They stimulate macrophages via secretion of their cytokine interleukin-9. Based on its known involv...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538120905430
更新日期:2020-08-01 00:00:00
abstract::Mycotic pseudoaneurysms of the peripheral arteries are rare and can occur as an extension of localized infection or from systemic sepsis. In some cases, no obvious source of infection may be identified. Both endovascular and open surgical management options are available for this important condition. We report a mycot...
journal_title:Vascular
pub_type: 杂志文章,评审
doi:10.2310/6670.2008.00060
更新日期:2009-05-01 00:00:00
abstract::Several guidelines recommend carotid endarterectomy for patients with severe asymptomatic carotid stenosis to reduce the risk of a future cerebrovascular event, as long as the perioperative stroke/death rate is <3%. Based on improvements in best medical treatment, it was argued that currently best medical treatment al...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538114560463
更新日期:2015-02-01 00:00:00
abstract::Objectives Treatment options for venous insufficiency are rapidly evolving in the office setting and include venography, intravascular ultrasound, and venous stenting. Non-thrombotic iliac vein lesions assessment and treatment in an office setting is currently an area of interest. The purpose of this study is to demon...
journal_title:Vascular
pub_type: 杂志文章
doi:10.1177/1708538117721624
更新日期:2018-02-01 00:00:00