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Robinson D J - - 2010
Quadrilateral space syndrome (QSS) is described as compression neuropathy of the axillary neurovascular bundle in the quadrilateral space of the shoulder. This neurovascular bundle includes the posterior circumflex humeral artery (PCHA). Historically, angiography and more recently magnetic resonance angiography have been used to assess occlusion and stenosis of the PCHA ...
Bley Thorsten A - - 2010
PURPOSE: To evaluate the use of time-resolved magnetic resonance (MR) angiography in the presurgical localization of the artery of Adamkiewicz prior to reimplantation of the feeding intercostal artery, lumbar artery, or both during aortic aneurysm repair. MATERIALS AND METHODS: This institutional review board-approved retrospective study included 68 patients (36 men, ...
Glockner James F - - 2010
PURPOSE: To assess the performance of a three-dimensional (3D) non-contrast respiratory-triggered steady state free precession (SSFP) pulse sequence for detection of renal artery stenosis. MATERIALS AND METHODS: A total of 64 patients who had non-contrast MR angiography (NC MRA) and 3D contrast-enhanced MRA (CE MRA) performed during the same exam ...
Ng Yee-Yung - - 2010
BACKGROUND: Atherosclerotic renal artery stenosis (ARAS) is a progressive but potentially reversible chronic kidney disease. Although the high sensitivity and specificity of renal Doppler scanning (RDS) for ARAS has been reported in western countries, ARAS has not been detected by RDS. This study used magnetic resonance angiography (MRA) to evaluate ...
Chen Wenhua - - 2010
OBJECTIVES: The aim of the study is to assess the clinical value of 16-row multislice computed tomographic angiography (CTA) for detection and treatment of intracranial aneurysms. PATIENTS AND METHODS: Between January 2005 and October 2008, 388 patients were included and successively underwent 16-slice CTA for suspected intracranial aneurysms. Three neuroradiologists ...
Raoult H - - 2010
No practical tool has been reported in the literature to evaluate the quality of cerebral TR-3D-CE-MRA techniques. Our study assessed a large list of parameters used to propose a quality-evaluation scheme for TR-3D-CE-MRA. A large list of visual and quantitative parameters used to study the quality of images was collected ...
Fatima Zareen - - 2010
INTRODUCTION: Evaluation of the congenital vascular lesions of the brain requires multiple conventional intra-arterial digital subtraction angiographic examinations which have many associated risks including exposure to ionizing radiations. Magnetic resonance digital subtraction angiography is a non-invasive procedure with no related risks of radiation exposure. This technique can be of greater ...
Besachio David A - - 2010
Catheter-directed digital subtraction angiography (DSA) is considered the standard for evaluation of superficial temporal to middle cerebral artery (STA-MCA) bypass patency. Few clinical investigations have been performed that evaluate the efficacy of computed tomographic angiography (CTA) in the assessment of extracranial-intracranial bypass. Using multi-detector row CTA, STA-MCA bypass patency was ...
Bharatha Aditya - - 2010
PURPOSE: To examine whether computed tomography angiography (CTA) is comparable to digital subtraction angiography (DSA) in assessing clipped intracranial aneurysms. MATERIALS AND METHODS: Retrospective collection of clipped aneurysms that had both CTA and DSA within 2 months of one another. Computed tomography angiograms were independently reviewed by 2 blinded neuroradiologists; ...
Chen Shih-Pin - - 2010
OBJECTIVE: To investigate the evolution and clinical significance of vasoconstriction on magnetic resonance angiography (MRA) in patients with reversible cerebral vasoconstriction syndromes (RCVS). METHODS: Patients with RCVS were recruited and followed up with MRA examinations until normalization of vasoconstriction or for 6 months. The vasoconstriction severity of the major cerebral ...
Newman Tiffany M - - 2010
PURPOSE: To evaluate the accuracy of magnetic resonance angiography (MRA) for preoperative mapping of rectus and gluteal muscle perforating arteries prior to autologous flap breast reconstruction. MATERIALS AND METHODS: Preoperative MRA on 25 consecutive patients undergoing perforator artery-based autologous breast reconstruction was performed at 1.5 T using 3D liver accelerate ...
Park Sung-Hong - - 2010
Compatible dual-echo arteriovenography (CODEA) is a recently developed technique for simultaneous acquisition of time-of-flight MR angiogram (MRA) and blood oxygenation level-dependent MR venogram (MRV) using an echo-specific k-space reordering scheme. In this study, we evaluated and compared the image quality of CODEA MRA/MRV implemented with two different schemes of echo-specific ...
Struffert Tobias - - 2010
BACKGROUND: Despite limited soft tissue resolution flat-detector computed tomography (FD-CT) provides substantial superior spatial resolution in comparison with multislice computed tomography (MS-CT). This may add value in the visualization of small vascular structures if intravenous contrast application leads to substantial opacification and visibility of intracranial vessels or aneurysms. PURPOSE: To ...
Jo Kwang Wook - - 2010
Although a transradial angiography is accepted as the gold standard for cardiovascular procedures, cerebral angiography has been performed via transfemoral approach in most institutions. The purpose of this study is to present our experience concerning the feasibility, efficacy, and safety of a transradial approach to cerebral angiography as an alternative ...
Wang Yi - - 2010
This report describes a rare case of a common celiomesenteric anomaly with a concurrent aneurysm demonstrated by contrast-enhanced multidetector computed tomography (MDCT) angiography. The patient, a 53-year-old man, had no abdominal pain or discomfort. Abdominal CT scanning was performed because of hypoglycemia. Celiac digital subtraction angiography (DSA) was carried out ...
Siriapisith Thanongchai - - 2010
BACKGROUND: Scanning with 64-slice multidetector row CT (MDCT) is usually faster than blood flow in peripheral arteries of the lower extremities, and the distal arteries of lower extremities are difficult to visualize, particularly in elderly patients. Thus, the optimal table speed for CT angiography (CTA) studies should be adjusted for ...
Netuka David - - 2010
Patients' life expectancy, clinical symptomatology and the extent of carotid stenosis are the most important factors when deciding whether to perform carotid endarterectomy (CEA) in patients with carotid stenosis. Therefore, the accuracy of measuring carotid stenosis is of utmost importance. Patients with internal carotid artery (ICA) stenosis were investigated by ...
Kang Joon-Won - - 2010
This trial assessed diagnostic accuracy of contrast-enhanced magnetic resonance angiography (MRA) with meglumine gadoterate (Gd-DOTA) at 3 Tesla (T) over unenhanced MRA at 3 T in non-coronary arterial diseases by comparing their accuracy with that of the gold standard, x-ray angiography. Ninety-two patients with suspected non-coronary arterial disease underwent in ...
Buerke B - - 2010
AIM: To evaluate the impact of bone subtraction computed tomography angiography (BS-CTA) for the assessment of transcranial arteries in comparison with standard CTA (S-CTA) without bone removal and time-of-flight magnetic resonance angiography (TOF-MRA). MATERIALS AND METHODS: Cranial unenhanced CT and S-CTA were performed in 53 patients with suspected cerebrovascular disease. ...
Baldwin Gregory I - - 2010
Venography (retrograde venous angiography) is a relatively simple and practical method for vascular assessment of the digits in the standing horse. The technique is a useful adjunct to routine radiography. The clinical use of the laminitis venogram has resulted in a more comprehensive understanding of the collateral pathology associated with ...
Lee Arvind D - - 2010
INTRODUCTION: Renal dysfunction after endovascular aortic aneurysm repair is an increasingly recognised problem. Carbon dioxide (CO(2)) angiography has been used to limit the risk of contrast nephrotoxicity during endovascular procedures. This prospective study evaluates the performance of CO(2) angiography during EVAR. METHODS: Seventeen patients undergoing EVAR over a 12 month ...
Chao Shu-Ping - - 2010
To assess the diagnostic accuracy of 256-row computed tomographic angiography (CTA) in patients with suspected coronary artery disease (CAD). Non-invasive imaging of the coronary artery by CTA has increasingly been used in recent years. The accuracy of 256-row CTA has not yet been studied. We sought to assess the accuracy ...
Burghaus L - - 2010
The diagnostic work-up of patients with third cranial nerve palsy includes neuroimaging because the lesion of the oculomotor nerve may result from compression due to an aneurysm. The advantages and disadvantages of different neuroimaging techniques, i. e. magnetic resonance angiography (MRA), computed tomography angiography (CTA) and intra-arterial digital subtraction angiography ...
Aslan Sina - - 2010
Pseudocontinuous arterial spin labeling MRI is a new arterial spin labeling technique that has the potential of combining advantages of continuous arterial spin labeling and pulsed arterial spin labeling. However, unlike continuous arterial spin labeling, the labeling process of pseudocontinuous arterial spin labeling is not strictly an adiabatic inversion and ...
Zhou Bing - - 2010
OBJECT: The authors conducted a study to evaluate the advantages of a 3D volume-rendering technique (VRT) in follow-up digital subtraction (DS) angiography of coil-embolized intracranial aneurysms. METHODS: One hundred nine patients with 121 intracranial aneurysms underwent endovascular coil embolization and at least 1 follow-up DS angiography session at the authors' ...
Zhong Hai - - 2010
OBJECTIVE: To evaluate computed tomographic angiography (CTA) and digital subtraction angiography (DSA) findings in popliteal artery entrapment syndrome (PAES). METHODS: Nine patients (13 limbs) who underwent surgical treatment for PAES were evaluated retrospectively. All cases showed various anomalous relationships between the popliteal artery and the neighboring muscular structures. Both CTA ...
Rennert Janine - - 2010
Contrast enhancement of the brain parenchyma and ventricular and subarachnoidal contrast extravasation are known to be rare complications after intra-arterial angiography. We here describe the first case of extensive contrast extravasation into the subdural space after percutaneous coronary intervention.
Foley W Dennis - - 2010
CT angiography (CTA) of the lower extremities has evolved into a robust noninvasive angiographic technique with the advent of 16 and 64 multidetector computed tomographic systems and advances in system design. CTA has displaced conventional catheter arteriography in a large range of applications and is predominantly used in the evaluation ...
Kukuk Guido M - - 2010
OBJECTIVE: Prospective intraindividual comparison of 4-dimensional contrast-enhanced MR angiography (4D-MRA) in combination with selective arterial spin labeling (ASL) at 3.0 Tesla and digital subtraction angiography (DSA) for anatomic and functional characterization of cerebral arteriovenous malformations (AVMs). MATERIALS AND METHODS: In a prospective intraindividual comparative study, 16 patients diagnosed with symptomatic ...
Sakamoto Shigeyuki - - 2010
Digital subtraction angiography (DSA) is the preferred method for confirming dural arteriovenous fistulas (DAVFs), but it has the disadvantage of being invasive. In contrast, time-resolved magnetic resonance angiography (TR-MRA) is a useful, noninvasive imaging technique. The aim of this study was to compare the evaluation of DAVFs of the cavernous ...
Anzidei M - - 2010
The authors performed a preliminary study with blood-pool contrast-enhanced magnetic resonance angiography (MRA) in evaluating the degree of carotid artery stenosis and plaque morphology, comparing the diagnostic performance of first-pass (FP) and steady-state (SS) acquisitions with 64-slice computed tomography angiography (CTA) and using digital subtraction angiography (DSA) as the reference ...
Lim Siok Ping - - 2011
Three-dimensional rotational digital subtraction (DS) angiography and DynaCT allow precise localization of intracranial arteriovenous fistulas (AVFs) with fiducial markers that have helped in surgical planning. These techniques are particularly useful when the AVF is not evident on cross-sectional imaging. The authors demonstrate the utility of 3D DS angiography and DynaCT ...
Zimmermann A - - 2010
OBJECTIVES: The Trans-Atlantic Inter-Society Document on Management of Peripheral Arterial Disease (TASC) gives treatment recommendations depending on the classification of aorto-iliacal or femoro-popliteal vascular pathologies. Therefore, the best treatment could only be offered if the right TASC classification was obtained. The purpose of this study was to assess the interobserver ...
Choi Hyun Seok - - 2010
Ostium of vertebral artery (VA) is a common site of pseudostenosis on contrast-enhanced MR angiography (CE-MRA). The purpose of this study was to determine the diagnostic accuracy of CE-MRA at 3 T in the evaluation of ostial stenosis of VA and to find associated coincidental stenoses using logistic regression analysis. One ...
Gutzeit Andreas - - 2010
PURPOSE: A retrospective analysis of the diagnostic performance of the timed arterial compression (TAC) technique, which allows freezing of the contrast bolus during first-pass contrast-enhanced (CE) magnetic resonance angiography (MRA) to diagnose vascular pathologies in the hand. MATERIAL AND METHODS: A total of 14 consecutive CE-MRAs of the hand were ...
Pinto A - - 2010
PURPOSE: We investigated the role of multidetector-row computed tomography (MDCT) in identifying active bleeding and its source in polytrauma patients with pelvic vascular injuries with or without associated fractures of the pelvis. MATERIALS AND METHODS: From January 2003 to December 2007, 28 patients (19 men and nine women, age range ...
Sommer C M - - 2010
The purpose of this study was to evaluate the technical and clinical success of superselective embolization in patients with life-threatening arterial renal hemorrhage undergoing preinterventional CT angiography. Forty-three patients with clinical signs of life-threatening arterial renal hemorrhage underwent CT angiography and catheter angiography. Superselective embolization was indicated in the case ...
Nagai Mutsumi - - 2010
The recent development of three-dimensional computed tomography (3D-CT) angiography with multi detector row CT (MDCT) improves cerebral artery imaging due to faster scanning at thinner collimation over a large scanning volume. Aneurysm clipping was performed using only 3D-CT angiography created by MDCT with 16 detector arrays (16-MDCT angiography), in place ...
Aslam Muhammad - - 2010
OBJECTIVE: To determine the sensitivity and specificity of thallium scintigraphy in detection of coronary artery disease in diabetic patients. STUDY DESIGN: Cross-sectional validation study. PLACE AND DURATION OF STUDY: The study was carried out from July to December 2007 in the Cardiology Department of the Pakistan Institute of Medical Sciences, ...
Akashi Toshiaki - - 2010
OBJECTIVE: The purpose of this study was to evaluate the feasibility of magnetic resonance angiography (MRA) with midsagittal saturation for depiction of superficial temporal artery-to-middle cerebral artery bypass flow. METHODS: Eleven patients undergoing bypass surgery in 13 regions were examined by external carotid artery angiography (ECAG) and 3-dimensional time-of-flight MRA ...
Salman Loay - - 2010
While vascular ultrasound (US) has been highlighted to detect vascular access stenosis, its accuracy in the identification of inflow stenosis (IS) (anastomosis and/or juxta-anastomotic area) compared with the gold standard (angiography) has not been evaluated. One hundred three consecutive fistulae referred for interventions were included in this study. Preprocedure US ...
Kohyama Shinya - - 2010
A 63-year-old woman with a direct carotid-cavernous fistula (CCF), manifesting as sudden onset of severe headache and pulsatile tinnitus suffered during coronary angiography, was successfully treated with transarterial embolization based on the anatomical information obtained from volume-rendered three-dimensional digital subtraction angiography (3D DSA) images. 3D DSA is useful for understanding ...
Murakami Mamoru - - 2010
BACKGROUND: Cerebellar infarction of childhood is rare, and is difficult in pathological diagnosis. We describe a case of radiographically diagnosed primary central nervous system angiitis of childhood. SUMMARY: A 7-year-old boy experienced dizziness and headache persisting for 7 days. Diffusion-weighted images of magnetic resonance (MR) showed high signals in the ...
Yoneyama Hiroshi - - 2010
OBJECTIVE: Our study was undertaken to determine the location of the tortuous intercostal artery in elderly patients by using 3D-CT angiography in order to prevent laceration during thoracentesis. METHODS: We evaluated the data of 3D-CT angiography of the intercostal artery in consecutive patients who had undergone contrast chest CT scan ...
Kawel Nadine - - 2010
To explore the role of contrast-enhanced magnetic resonance angiography (CE-MRA) in clinical routine for evaluating neonates with pulmonary atresia (PA) and to describe their pulmonary artery morphology and blood supply.CE-MRA studies of 15 neonates with PA (12 female; median weight: 2900 g) were retrospectively evaluated by two radiologists in consensus. ...
van Werkhoven Jacob M - - 2010
Data on the diagnostic accuracy of multislice computed tomographic coronary angiography (CTA) have been mostly derived from patients with a high pretest likelihood of coronary artery disease. Systematic comparisons with invasive angiography in patients with an intermediate pretest likelihood are scarce. The purpose of the present study was to determine ...
Kaufmann T J - - 2010
BACKGROUND AND PURPOSE: Endovascularly coiled intracranial aneurysms are increasingly being followed up with noninvasive MRA imaging to evaluate for aneurysm recurrences. It has not been well-established which MRA techniques are best for this application, however. Our aim was to prospectively compare 4 MRA techniques, TOF and CE-MRA at 1.5T and ...
Thévenin Fabrice S - - 2010
OBJECTIVE: To evaluate the accuracy of computed tomography angiography (CTA) in predicting arterial encasement by limb tumours, by comparing CTA with surgical findings (gold standard). METHODS: Preoperative CTA images of 55 arteries in 48 patients were assessed for arterial status: cross-sectional CTA images were scored as showing a fat plane ...
Friman Ola - - 2010
A multiple hypothesis tracking approach to the segmentation of small 3D vessel structures is presented. By simultaneously tracking multiple hypothetical vessel trajectories, low contrast passages can be traversed, leading to an improved tracking performance in areas of low contrast. This work also contributes a novel mathematical vessel template model, with ...
Nielsen Yousef W - - 2010
The purpose of this investigation was to determine if addition of infragenicular steady-state (SS) magnetic resonance angiography (MRA) to first-pass imaging improves diagnostic performance compared with first-pass imaging alone in patients with peripheral arterial disease (PAD) undergoing whole-body (WB) MRA. Twenty consecutive patients with PAD referred to digital-subtraction angiography (DSA) ...
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