Abstract:
OBJECTIVE:This study was conducted to determine the differences in the diameter of the thoracic aorta when measured from electrocardiographic (ECG)-gated and nongated computed tomography (CT) angiography. Another aim was to define the difference in the aortic diameter when it is measured at peak systole and end diastole in ECG-gated scans. METHODS:The gated and nongated CT angiograms of 27 patients (mean age, 58 ± 16 standard deviation [SD] years) obtained on a 256-slice multidetector CT scanner were used. The transverse and anteroposterior diameters and the lumen areas were measured at 1, 4, and 8 cm below the origin of the left subclavian artery. RESULTS:There was a significant difference in the aortic measurements of diameter between gated and nongated scans found in samples taken at 1, 4, and 8 cm distal to the left subclavian artery (P < .0001). We found a considerable difference between the systolic and diastolic diameters (P < .0001). The maximum change in diameter between systole and diastole was 2.9 ± 0.9 (SD) mm (14.5%, P < .0001) at 1 cm, 5.4 mm (22.6%; median, 1.7 mm; P < .0001) at 4 cm, and 4.4 mm (16.9%; median, 1.3 mm; P < .0001) at 8 cm. There was a significant difference between the transverse and anteroposterior diameters in systole and diastole at all locations (P < .0001): The maximum change in diameter between transverse and anteroposterior diameters in systole was 5.4 ± 1.1 (SD) mm (15.7%, P < .0001) at 1 cm, 5.8 mm (19%; median, 1.4 mm; P < .0001) at 4 cm, and 5 mm (15%; median, 1.02 mm; P < .0001) at 8 cm. There was also a substantial difference between measuring the transverse diameter directly and deriving it from the lumen area (P < .0001). CONCLUSIONS:Our results showed an important difference between systolic and diastolic diameters measurements in ECG-gated scans. The standard protocol for measuring aortic diameters in gated scans of the thoracic aorta uses images at end diastole because the lack of wall motion at this time provides better resolution. This is likely to result in undersizing that, in some instances, may threaten stability and the proper seal of the stent graft. The dimensions of the aorta in a gated CT should be measured at peak systole rather than the conventional end diastole used today. Most medical centers use nongated CT or gated CT scans in end diastole to calculate sizes of endografts. In view of our findings, the latter method could result in potential complications.
journal_name
J Vasc Surgjournal_title
Journal of vascular surgeryauthors
Parodi J,Berguer R,Carrascosa P,Khanafer K,Capunay C,Wizauer Edoi
10.1016/j.jvs.2013.07.005subject
Has Abstractpub_date
2014-01-01 00:00:00pages
74-9issue
1eissn
0741-5214issn
1097-6809pii
S0741-5214(13)01293-7journal_volume
59pub_type
杂志文章abstract:OBJECTIVE:The aim of this study was to evaluate morphologic changes in dissected aortas after thoracic endovascular aortic repair (TEVAR) with the use of the Relay Nonbare stent graft stent graft by focusing on the geometric stent graft's performance in remodeling aortas. METHODS:We conducted a retrospective three-dim...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jvs.2019.02.026
更新日期:2019-11-01 00:00:00
abstract:OBJECTIVE:This study was conducted to determine if there are sex-based differences in the inflammatory phenotype of patients undergoing lower extremity bypass (LEB) and if they correlate with clinical outcomes. METHODS:This was a retrospective analysis of a prospective cohort of 225 patients (161 men and 64 women) who...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2012.01.059
更新日期:2012-08-01 00:00:00
abstract:OBJECTIVE:Transcatheter embolization with coils and other agents has been described as a treatment method for type II endoleak after endovascular aortic aneurysm repair (EVAR). Type I endoleak has not been treated commonly with such therapies, although most investigators believe they warrant definitive intervention. Th...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(03)00729-8
更新日期:2003-10-01 00:00:00
abstract:OBJECTIVES:The objectives of this study were to investigate variations between states and changes in state-specific carotid endarterectomy (CEA) and 30-day mortality rates. Cross-sectional variations and changes over time in such measures may be indicative of improvement in the quality of care. METHODS:We performed re...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(03)00616-5
更新日期:2003-10-01 00:00:00
abstract::We present a case of Viabahn (W. L. Gore & Associates, Flagstaff, Ariz) collapse during popliteal artery aneurysm treatment. An elderly man with severe comorbidities presented with a 34-mm popliteal artery aneurysm. Proximal and distal landing sites of 11 and 9 mm, respectively, demonstrated by preoperative computed t...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2007.08.024
更新日期:2008-02-01 00:00:00
abstract::Tracheo-innominate artery fistula is a highly lethal complication after tracheostomy. A 37-year-old man who had undergone a tracheostomy 14 years earlier because of dysphagia after brain surgery had a tracheo-innominate artery fistula with exsanguinating hemorrhage from his tracheostomy site. After temporary control o...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2001.114997
更新日期:2001-06-01 00:00:00
abstract::The mortality rate for elective abdominal aortic operations remains between 3% and 8% despite careful hemodynamic monitoring, and half of these deaths are cardiac in origin. An extensive evaluation of ventricular function was performed during abdominal aortic operation to detect subtle abnormalities in systolic or dia...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:
更新日期:1986-05-01 00:00:00
abstract:PURPOSE:Prognostic information about graft outcome, obtained by using a new method for intraoperative measurement of vascular impedance, was evaluated. METHODS:Hydraulic impedance was measured in 136 infrainguinal bypass grafts that were entered into a multicenter trial. Seventy femoropopliteal and 66 femorocrural pol...
journal_title:Journal of vascular surgery
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/s0741-5214(99)70141-2
更新日期:1999-08-01 00:00:00
abstract:PURPOSE:The objective of this study was to assess the usefulness of gadolinum-enhanced magnetic resonance angiography (MRA) for defining anatomic features relevant to performing aortic surgery for aneurysmal disease. METHODS:Anatomic data defined by MRA, including abdominal aortic aneurysm (AAA) size and character, as...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(95)70197-4
更新日期:1995-04-01 00:00:00
abstract:PURPOSE:This study was performed to examine the role of the vascular endothelium in modulating arterial reactivity to adrenergic vasoconstriction in subcutaneous arteries from patients with type II diabetes. METHODS:Small subcutaneous arteries (inner diameter = 90 to 180 microns) from control subjects (n = 22) and pat...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(96)70261-6
更新日期:1996-05-01 00:00:00
abstract::Polytetrafluoroethylene interposition grafts were used for carotid reconstruction in 26 operations performed in 23 patients during a 7-year period. There were 10 men and 13 women with a mean age of 66 years. The indication for interposition graft placement was recurrent stenosis with inability to perform endarterectom...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1992.39750
更新日期:1992-10-01 00:00:00
abstract:INTRODUCTION:Smoking cessation is one of the few available strategies to decrease the risk for expansion and rupture of small abdominal aortic aneurysms (AAAs). The cost-effectiveness of an intensive smoking cessation therapy in patients with small AAAs identified at screening was evaluated. METHODS:A Markov cohort si...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2011.02.055
更新日期:2011-09-01 00:00:00
abstract:INTRODUCTION:Despite the frequent performance of minor foot amputations in patients with lower extremity vascular disease, little is known regarding the rate of conversion to major amputations and the role of bypass graft timing in relation to amputation. METHODS:Between January 1990 and December 2001, 670 patients un...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2005.05.003
更新日期:2005-09-01 00:00:00
abstract::The pedigrees were constructed of 43 patients (probands) who underwent resection of an abdominal aortic aneurysm. Seven probands (16.2%) had a first-degree relative (parent, sibling, child) known to have had an abdominal aortic aneurysm (multiplex family). To determine the prevalence of undiagnosed abdominal aortic an...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1991.25382
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVES:A protective inferior vena cava (IVC) filter may later be incorporated into a chronic postthrombotic ilio-caval obstruction (occlusive, requiring recanalization, or nonocclusive). This study aims to assess the safety and stent-related outcome following stenting across an obstructed filter. METHODS:From 1997...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2010.11.117
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Patients with venous thromboembolic disease are treated with anticoagulation or vena cava filter placement to prevent pulmonary embolism. A recent report suggested that filter placement may increase the risk of recurrent deep venous thrombosis (DVT) and prompted a review of our experience. METHODS:Prospecti...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2001.111733
更新日期:2001-03-01 00:00:00
abstract:OBJECTIVE:Vein graft adaptation is characterized by loss of expression of the tyrosine kinase receptor Eph-B4, the embryonic determinant of venous identity, without increased expression of its ligand ephrin-B2, the embryonic determinant of arterial identity. Endothelial nitric oxide synthase (eNOS) is an important medi...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2015.11.041
更新日期:2017-01-01 00:00:00
abstract:OBJECTIVE:Aneurysm rupture is a major cause of morbidity and mortality, and evidence suggests shared risk for both abdominal aortic aneurysms (AAAs) and intracranial aneurysms (IAs). We hypothesized that screening for AAA in patients with known IA is cost-effective. METHODS:We used a decision tree model to compare cos...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jvs.2016.05.065
更新日期:2016-09-01 00:00:00
abstract::Wound complications after in situ saphenous vein bypass occur frequently, lengthen hospitalization, and threaten graft viability. From May 1981 to March 1991, 117 consecutive male patients underwent 126 in situ operations: 45 (36%) femoropopliteal, 75 (59%) femorotibial, and 6 (5%) grafts to the dorsal pedal artery fo...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1992.36658
更新日期:1992-05-01 00:00:00
abstract:OBJECTIVE:To evaluate patterns of use and outcomes of arteriovenous fistulas and prosthetic grafts within racial categories in a large population based cohort of hemodialysis (HD) patients in the United States. METHODS:A retrospective analysis of white, black, and Hispanic patients in the prospectively maintained Unit...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jvs.2019.07.092
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND:Approximately 20% of strokes are attributable to carotid stenosis. However, the number of asymptomatic patients needed to prevent one stroke or death with endarterectomy is high at 17 to 32. There is a clear need to identify asymptomatic individuals at high risk of developing future ischemic events to improv...
journal_title:Journal of vascular surgery
pub_type: 杂志文章,评审
doi:10.1016/j.jvs.2011.01.037
更新日期:2011-07-01 00:00:00
abstract:PURPOSE:The outcome of infrainguinal bypass surgery for limb salvage has traditionally been assessed by graft patency rates, limb salvage rates, and patient survival rates. Recently, functional outcome of limb salvage surgery has been assessed by patient ambulatory status and independent living status. These assessment...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/s0741-5214(98)70356-8
更新日期:1998-02-01 00:00:00
abstract::Large veins (superior and inferior vena cava, portal vein) have been replaced successfully with lower extremity deep veins (superficial femoral-popliteal). Femoropopliteal bypass with superficial femoral-popliteal veins has been reported to give excellent long-term results. Nevertheless, this source of autogenous vein...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1991.31965
更新日期:1991-11-01 00:00:00
abstract::Chronic venous insufficiency is a frequent sequel to lower extremity venous thrombosis. A relatively uncommon, but potentially lethal, cause of the thrombosis is congenital antithrombin III deficiency. Recognition and treatment of this occult deficiency is critical. The following report describes a family treated by t...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1990.17918
更新日期:1990-04-01 00:00:00
abstract:OBJECTIVE:Endovascular aneurysm repair (EVAR) of abdominal aortic aneurysms (AAAs) that also involve the common iliac artery (CIA) typically is accomplished by endograft limb extension into the external iliac artery (EIA). In order to prevent endoleak, the internal iliac artery (IIA) is usually embolized, or alternativ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2011.08.063
更新日期:2012-08-01 00:00:00
abstract:OBJECTIVES:To compare the pattern of daily ambulatory activity in men and women with intermittent claudication, and to determine whether calf muscle hemoglobin oxygen saturation (StO2) is associated with daily ambulatory activity. METHODS:Forty men and 41 women with peripheral arterial disease limited by intermittent ...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2010.05.115
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:The place of routine perioperative thromboprophylaxis for vascular surgical patients remains controversial, because the incidence of postoperative deep venous thrombosis (DVT) is said to be quite low. This study was designed to measure the incidence of lower limb DVT after vascular surgical procedures. METHODS...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.2001.116803
更新日期:2001-10-01 00:00:00
abstract::In an attempt to assess the efficacy of thrombolytic infusions for arterial ischemia, a questionnaire was distributed to 142 vascular surgeons. Data from 45 respondents who had experience with thrombolytic infusion in 623 patients were reviewed. A successful outcome was obtained in 313 of 623 patients (50.2%). Morbidi...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1987.avs0060045
更新日期:1987-07-01 00:00:00
abstract:OBJECTIVES:Increased utilization of computed tomography angiography (CTA) has increased the radiologic diagnosis of penetrating atherosclerotic ulcers (PAUs), which are defined as the ulceration of atherosclerotic plaque through the internal elastic lamina into the aortic media. However, the presentation, treatment ind...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1016/j.jvs.2011.08.005
更新日期:2012-01-01 00:00:00
abstract::The Greenfield filter has become the most popular device for interruption of the inferior vena cava; however, a potential for lethal complications exists. We report two cases in which this filter was accidentally released in the heart. To avoid this problem, it is recommended that the guide wire be positioned in the i...
journal_title:Journal of vascular surgery
pub_type: 杂志文章
doi:10.1067/mva.1987.avs0060609
更新日期:1987-12-01 00:00:00