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https://www.readbyqxmd.com/read/28734956/fast-carotid-artery-mr-angiography-with-compressed-sensing-based-three-dimensional-time-of-fight-sequence
#1
Bo Li, Hao Li, Li Dong, Guofu Huang
OBJECTIVE: In this study, we sought to investigate the feasibility of fast carotid artery MR angiography (MRA) by combining three-dimensional time-of-flight (3D TOF) with compressed sensing method (CS-3D TOF). MATERIALS AND METHODS: A pseudo-sequential phase encoding order was developed for CS-3D TOF to generate hyper-intense vessel and suppress background tissues in under-sampled 3D k-space. Seven healthy volunteers and one patient with carotid artery stenosis were recruited for this study...
July 19, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28734922/warfarin-use-is-associated-with-progressive-coronary-arterial-calcification-insights-from-serial-intravascular-ultrasound
#2
Jordan Andrews, Peter J Psaltis, Ozgur Bayturan, Mingyuan Shao, Brian Stegman, Mohamed Elshazly, Samir R Kapadia, E Murat Tuzcu, Steven E Nissen, Stephen J Nicholls, Rishi Puri
OBJECTIVES: This study compared serial changes in coronary percent atheroma volume (PAV) and calcium index (CaI) in patients with coronary artery disease who were treated with and without warfarin. BACKGROUND: Warfarin blocks the synthesis and activity of matrix Gla protein, a vitamin K-dependent inhibitor of arterial calcification. The longitudinal impact of warfarin on serial coronary artery calcification in vivo in humans is unknown. METHODS: In a post hoc patient-level analysis of 8 prospective randomized trials using serial coronary intravascular ultrasound examinations, this study compared changes in PAV and CaI in matched arterial segments in patients with coronary artery disease who were treated with (n = 171) and without (n = 4,129) warfarin during an 18- to 24-month period...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28734913/uncovered-culprit-plaque-ruptures-in-patients-with-st-segment-elevation-myocardial-infarction-assessed-by-optical-coherence-tomography-and-intravascular-ultrasound-with-imap
#3
Mikkel Hougaard, Henrik Steen Hansen, Per Thayssen, Lisbeth Antonsen, Lisette Okkels Jensen
OBJECTIVES: This study assessed the incidence and course of healing of uncovered plaque ruptures (PR) following primary percutaneous coronary intervention. BACKGROUND: The infarct-related occlusion is frequently located at the lesion site with maximum thrombus burden, whereas the culprit PR may be situated more proximally or distally. METHODS: Uncovered PR in segments adjacent to the stent were identified by optical coherence tomography and intravascular ultrasound using iMap (Boston Scientific, Marlborough, Massachusetts) within 48 h and after 12 months...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28734912/coronary-artery-calcification-a-janus-faced-biomarker
#4
EDITORIAL
Chris Reutelingsperger, Leon Schurgers
No abstract text is available yet for this article.
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28734752/long-term-effect-of-oncoplastic-breast-conserving-surgery-using-latissimus-dorsi-miniflaps-on-mammographic-surveillance-and-the-detection-of-local-recurrence
#5
S Mele, D Wright, N Paramanathan, S Laws, L Peiris, R Rainsbury
INTRODUCTION: Latissimus dorsi miniflap is a breast-conserving volume replacement technique for the reconstruction of large breast defects. While mammographic features of miniflap reconstruction have been described, little is known about the incidence, mode of presentation and size of local recurrence after this procedure. This study aimed to investigate the impact of latissimus dorsi miniflap reconstruction on the frequency, presentation and detection of local recurrence. METHODS: Clinical, radiological and pathological data were reviewed in 261 patients...
June 28, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28734587/computed-tomography-predict-regression-of-coronary-artery-aneurysm-in-patients-with-kawasaki-disease
#6
Po-Ting Chen, Ming-Tai Lin, Yih-Sharng Chen, Shyh-Jye Chen, Mei-Hwan Wu
BACKGROUND/PURPOSE: The study evaluated possible factors influencing the regression of coronary artery aneurysm (CAA) in patients with Kawasaki disease (KD) through electrocardiographically gated cardiac computed tomography (CT). METHODS: 18 patients with KD exhibited CAAs in at least 2 CT examinations conducted from December 2004 to September 2015, and 37 aneurysms were observed. Every aneurysm was corrected through the descending aorta at the origin level of the left main coronary artery under a normal distribution and measured under a fixed window level...
July 19, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28734529/ultrasound-based-differentiation-of-malignant-and-benign-thyroid-nodules-an-extreme-learning-machine-approach
#7
Jianfu Xia, Huiling Chen, Qiang Li, Minda Zhou, Limin Chen, Zhennao Cai, Yang Fang, Hong Zhou
BACKGROUND AND OBJECTIVES: It is important to be able to accurately distinguish between benign and malignant thyroid nodules in order to make appropriate clinical decisions. The purpose of this study was to improve the effectiveness and efficiency for discriminating the malignant from benign thyroid cancers based on the Ultrasonography (US) features. METHODS: There were 114 benign nodules in 106 patients (82 women and 24 men) and 89 malignant nodules in 81 patients (69 women and 12 men) included in this study...
August 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28734104/predictors-of-early-renal-function-decline-in-adults-with-type%C3%A2-1-diabetes-the-coronary-artery-calcification-in-type-1-diabetes-and-the-pittsburgh-epidemiology-of-diabetes-complications-studies
#8
P Bjornstad, T Costacou, R G Miller, D M Maahs, M J Rewers, T J Orchard, J K Snell-Bergeon
AIM: Diabetic kidney disease is one of the leading complications of Type 1 diabetes, but its prediction remains a challenge. We examined predictors of rapid decline in estimated GFR (eGFR) in two Type 1 diabetes cohorts: the Coronary Artery Calcification in Type 1 Diabetes (CACTI) and the Pittsburgh Epidemiology of Diabetes Complications (EDC). METHODS: A select subset of participants (CACTI: n = 210 and EDC: n = 98) diagnosed before 17 years of age with Type 1 diabetes duration ≥ 7 years, and follow-up data on eGFR by CKD-EPI creatinine for up to 8 years were included in the analyses...
July 22, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28733974/impact-of-diabetes-mellitus-on-procedural-and-one-year-clinical-outcomes-following-treatment-of-severely-calcified-coronary-lesions-with-the-orbital-atherectomy-system-a-subanalysis-of-the-orbit-ii-study
#9
Michael S Lee, Brad J Martinsen, Arthur C Lee, Ann N Behrens, Richard A Shlofmitz, Christopher Y Kim, Jeffrey W Chambers
OBJECTIVES: The goal of the study was to investigate the safety and efficacy of the coronary orbital atherectomy system to treat severe coronary artery calcification (CAC) prior to stent placement in diabetic and non-diabetic patients. BACKGROUND: The ORBIT II study reported the safety and efficacy of orbital atherectomy treatment in 443 patients with severe CAC. Percutaneous coronary intervention in diabetic patients is associated with an increased risk of major adverse cardiac events (MACE) compared with non-diabetics...
July 22, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28731995/-update-on-chronic-pancreatitis-review-article
#10
Frank Czul, Emmanuel Coronel, Jean A Donet
Chronic pancreatitis is a progressive fibro-inflammatory disease of the pancreas characterized by irreversible fibrosis of the gland with eventual failure of exocrine and endocrine functions and hallmark features of abdominal pain, malabsorption, malnutrition, diabetes mellitus and pancreatic calcifications. In many patients this disease results from a complex mix of environmental (eg, alcohol, cigarettes, and occupational chemicals), genetic factors and a few patients with hereditary or autoimmune disease...
April 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28731809/reply-to-digital-breast-tomosynthesis-assists-in-differentiating-vascular-calcification-from-malignant-calcification
#11
Regina J Hooley, Liane E Philpotts
No abstract text is available yet for this article.
August 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28731806/digital-breast-tomosynthesis-assists-in-differentiating-vascular-calcification-from-malignant-calcification
#12
Yamin Cohen
No abstract text is available yet for this article.
August 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28730800/optimizing-the-role-of-transthoracic-echocardiography-to-improve-the-cardiovascular-risk-stratification-the-dream-of-subclinical-coronary-artery-disease-detection
#13
Giovanni Benfari, Andrea Rossi, Giulia Geremia, Giulia Vinco, Carlo Zivelonghi, Aldo D Milano, Leonardo Gottin, Flavio L Ribichini, Francesco Onorati, Giuseppe Faggian
Detecting coronary artery disease at a subclinical level has always been a challenging task for cardiologists. Various non-invasive echocardiographic approaches such as measurements of left ventricular hypertrophy, diastolic function, left atrial enlargement, valve sclerosis and calcification, epicardial fat thickness, and pulse wave velocity have been proposed to integrate the available risk-charts. The present review is a collection of evidence that supports the role of the above mentioned features in cardiac risk stratification, summarizing the state of the art in non-invasive echocardiographic coronary risk assessment...
July 21, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28730339/breast-cancer-neoplastic-seeding-in-the-setting-of-image-guided-needle-biopsies-of-the-breast
#14
REVIEW
Lumarie Santiago, Beatriz E Adrada, Monica L Huang, Wei Wei, Rosalind P Candelaria
PURPOSE: To identify clinicopathologic, technical, and imaging features associated with neoplastic seeding (NS) following image-guided needle breast biopsy. METHODS: We performed an institutional review board-approved retrospective review of patients presenting with a new diagnosis of breast cancer or suspicious breast findings requiring biopsy with subsequent diagnosis of NS. The time from biopsy to NS diagnosis was calculated. Histology, grade, estrogen receptor (ER) status, progesterone receptor (PR) status, HER2 status, T category, and N category were recorded...
July 20, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28730268/detection-of-vessel-wall-calcifications-in-vertebral-arteries-using-susceptibility-weighted-imaging
#15
Lisa C Adams, Sarah M Böker, Yvonne Y Bender, Eva M Fallenberg, Moritz Wagner, Thomas Liebig, Bernd Hamm, Marcus R Makowski
PURPOSE: Calcification of the brain supplying arteries has been linked to an increased risk for cerebrovascular disease. The purpose of this study was to test the potential of susceptibility weighted MR imaging (SWMR) for the detection of vertebral artery calcifications, based on CT as a reference standard. METHODS: Four hundred seventy-four patients, who had received head CT and 1.5 T MR scans with SWMR, including the distal vertebral artery, between January 2014 and December 2016, were retrospectively evaluated and 389 patients were included...
July 20, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28729377/abundant-dystrophic-calcifications-mimicking-aortic-valve-abscess-in-a-patient-undergoing-elective-aortic-valve-replacement
#16
Adam L Booth, Christine Q Li, Ghannam Ayed Al-Dossari, Heather L Stevenson
Dystrophic calcifications of the aortic valve may cause symptomatic aortic stenosis and account for a significant portion of patients who undergo elective valve replacement. Calcifications appearing grossly as a cloudy fluid surrounding the aortic valve leaflets are an uncommon finding. Normally, calcified aortic valves are characterised by large, nodular masses within the aortic cusps. We report a case of dystrophic calcifications on a stenotic aortic valve encountered intraoperatively, which was suggestive of infective endocarditis and abscess formation...
July 19, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28729297/association-between-intracranial-atherosclerotic-calcium-burden-and-angiographic-luminal-stenosis-measurements
#17
H Baradaran, P Patel, G Gialdini, A Giambrone, M P Lerario, B B Navi, J K Min, C Iadecola, H Kamel, A Gupta
BACKGROUND AND PURPOSE: Calcification of the intracranial vasculature is an independent risk factor for stroke. The relationship between luminal stenosis and calcium burden in the intracranial circulation is incompletely understood. We evaluated the relationship between atherosclerotic calcification and luminal stenosis in the intracranial ICAs. MATERIALS AND METHODS: Using a prospective stroke registry, we identified patients who had both NCCT and CTA or MRA examinations as part of a diagnostic evaluation for ischemic stroke...
July 20, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28729176/infant-nephrolithiasis-and-nephrocalcinosis-natural-history-and-predictors-of-surgical-intervention
#18
Veridiana Andrioli, Kerri Highmore, Michael P Leonard, Luis A Guerra, Kenneth Tang, Jennifer Vethamuthu, Victoria Meyers, Katrina J Sullivan, Melise A Keays
INTRODUCTION: Renal stone disease diagnosed in the first year of life is relatively uncommon. While risk factors such as low birth weight, furosemide exposure, and metabolic disorders are well established, there exists little information regarding resolution rates and need for surgical intervention. Our study objective was to evaluate urolithiasis and renal calcification resolution rates, time to resolution, and need for surgical intervention in children diagnosed in their first year of life...
July 10, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28728867/finite-element-analysis-of-tavi-impact-of-native-aortic-root-computational-modeling-strategies-on-simulation-outcomes
#19
Alice Finotello, Simone Morganti, Ferdinando Auricchio
In the last few years, several studies, each with different aim and modeling detail, have been proposed to investigate transcatheter aortic valve implantation (TAVI) with finite elements. The present work focuses on the patient-specific finite element modeling of the aortic valve complex. In particular, we aim at investigating how different modeling strategies in terms of material models/properties and discretization procedures can impact analysis results. Four different choices both for the mesh size (from  20 k elements to  200 k elements) and for the material model (from rigid to hyperelastic anisotropic) are considered...
July 17, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28728854/potential-use-of-american-college-of-radiology-bi-rads-mammography-atlas-for-reporting-and-assessing-lesions-detected-on-dedicated-breast-ct-imaging-preliminary-study
#20
Hae Kyoung Jung, Cherie M Kuzmiak, Keum Won Kim, Na Mi Choi, Hye Jeong Kim, Eun Lee Langman, Sora Yoon, Doreen Steen, Donglin Zeng, Fei Gao
RATIONALE AND OBJECTIVES: Dedicated breast computed tomography (DBCT) is an emerging and promising modality for breast lesions. The objective of this study was to evaluate the potential use of applying the BI-RADS Mammography Atlas 5th Edition for reporting and assessing breast lesions on DBCT. Currently, no atlas exists for DBCT. MATERIALS AND METHODS: Four radiologists trained in breast imaging were recruited in this institutional review board-approved, Health Insurance Portability and Accountability Act-compliant study...
July 17, 2017: Academic Radiology
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