Intra-individual comparison of carotid and femoral atherosclerotic plaque features with in vivo MR plaque imaging

Abstract The purpose of this study was to evaluate differences of plaque composition and morphology within the same patient in different vascular beds using non-invasive MR-plaque imaging. 28 patients (67.8 ± 7.4 years, 8 females) with high Framingham general cardiovascular disease 10-year risk score and mild-to-moderate atherosclerosis were consecutively included in the study. All subjects underwent a dedicated MRI-plaque imaging protocol using TOF and T1w and T2w black-blood-sequences with fat suppression at 1.5 T. The scan was centered on the carotid bulb of the carotid arteries and on the most stenotic lesion of the ipsilateral femoral artery, respectively. Plaques were classified according to the American Heart Association (AHA) lesion type classification and area measurements of lumen, wall and the major plaque components, such as calcification, necrotic core and hemorrhage were determined in consensus by two blinded reviewers using dedicated software (Cascade, Seattle, USA). Plaque components were recorded as maximum percentages of the wall area. Carotid arteries had larger maximum wall and smaller minimum lumen areas (p 
Source: The International Journal of Cardiovascular Imaging - Category: Radiology Source Type: research

Related Links:

CONCLUSION For patients with TBI resulting in intracranial hemorrhages, administration of VTE chemoprophylaxis is warranted for those patients with stable repeat computed tomography scans. Early chemoprophylaxis, at 24 to 72 hours is associated with reduced VTE incidence without a corresponding increase or exacerbation of intracranial hemorrhage in patients with TBI who have a stable repeat head computed tomography scan. More studies are needed to establish guidelines for the safety and efficacy of VTE prophylaxis protocols in adult patients with TBI. LEVEL OF EVIDENCE Systematic review, level III.
Source: The Journal of Trauma: Injury, Infection, and Critical Care - Category: Orthopaedics Tags: SYSTEMATIC REVIEWS Source Type: research
Many commonly used medical devices, such as catheters, cardiopulmonary bypass systems, and endovascular grafts, are intended to come in contact with circulating blood. Therefore, these devices require an assessment for hemocompatibility risks such as hemolysis and thrombosis prior to submitting to a regulatory agency for market approval. The testing required for the evaluation of these specific endpoints depends on the exposure type and duration of the specific medical device under focus, and the guidance is captured in Table 1 of ISO 10993-4 Biological evaluation of medical devices - Part 4: Selection of tests for interac...
Source: MDDI - Category: Medical Devices Authors: Tags: Testing Source Type: news
The EkoSonic Endovascular System has been used to clear blood clots in patients with pulmonary embolism, deep vein thrombosis or peripheral arterial occlusions by applying ultrasound (US) in combination with lytic drugs. It is believed that clots exposed to acoustic pulses undergo structural changes in the fibrin network. To better understand this US effect, changes to fibrinogen and plasma clots treated with US were investigated using clot turbidity measurements and scanning electron microscopy (SEM) images.
Source: Journal of Vascular and Interventional Radiology : JVIR - Category: Radiology Authors: Tags: Scientific Session 19 Source Type: research
To determine the effect of inferior vena cava (IVC) size on development of complications as determined on post placement CT scan, including filter tilt, penetration, and thrombosis.
Source: Journal of Vascular and Interventional Radiology : JVIR - Category: Radiology Authors: Tags: Scientific e-Poster Source Type: research
Conclusion: To our knowledge, this is the first report in which an immediate thrombus formation on the carotid web was observed in a patient with congenital protein C deficiency. In a case of acute ischemic stroke with carotid web, especially when congenital coagulopathy such as protein C deficiency is suspected, careful follow-up with ultrasound imaging should be performed.
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Authors: Jiang W, Cao C, Shi H, Shou J, Wang D, Wen L, Li C, Ma J Abstract PURPOSE: Previous reports showed that some patients with renal cell carcinoma (RCC) and renal vein tumor thrombus (RVTT) were misdiagnosed pre-operatively. To improve the accuracy of this diagnosis, the clinical characteristics of RCC with missed RVTT diagnosis were analyzed. METHODS: We retrospectively reviewed RCC patients with RVTT between January 2000 and December 2015. The survival analysis was estimated using the Kaplan-Meier method. The Cox proportional hazard models were applied to identify risk factors. RESULTS: The missed d...
Source: Scandinavian Journal of Urology - Category: Urology & Nephrology Tags: Scand J Urol Source Type: research
We reported a case of intermittent massive upper gastrointestinal bleeding in a 33-year-old man with cholangiocarcinoma who underwent surgical resection followed by chemoradiation. A portoduodenal fistula due to chronic duodenal ulceration was identified. The bleeding was successfully controlled by endoscopic ultrasound-guided coil placement through the duodenal bulb using the anchoring technique. Follow-up endoscopy and computed tomography scan showed multiple coil placements between a part of the portal vein and the duodenal bulb without any evidence of portal vein thrombosis. There were no complications, and bleeding di...
Source: Clinical Endoscopy - Category: Gastroenterology Tags: Clin Endosc Source Type: research
Condition:   Stroke Intervention:   Other: Cardiac scanner Sponsor:   Groupe Hospitalier Paris Saint Joseph Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
In this report, we present the case of a patient in whom the diagnosis of pulmonary artery sarcoma was made promptly and surgery was performed soon after. Pulmonary artery intimal sarcoma is a rare disorder arising from the intima of the pulmonary artery. Histopathology reveals that it is a tumour cell of mesenchymal origin. The signs and symptoms include chronic shortness of breath and other features of right ventricular failure, which mimic chronic pulmonary thromboembolism. The definitive diagnosis can rarely be made based on the symptoms and signs alone, and other investigations including echocardiography, computed tom...
Source: Respirology Case Reports - Category: Respiratory Medicine Authors: Tags: Case Report Source Type: research
More News: Cardiology | Cardiovascular | Heart | PET Scan | Radiology | Study | Thrombosis