keyword
MENU ▼
Read by QxMD icon Read
search

Vascular imaging

keyword
https://www.readbyqxmd.com/read/28943915/zoledronic-acid-inhibits-infiltration-of-tumor-associated-macrophages-and-angiogenesis-following-transcatheter-arterial-chemoembolization-in-rat-hepatocellular-carcinoma-models
#1
Da-Yong Zhou, Jie Qin, Jian Huang, Feng Wang, Guo-Peng Xu, Yan-Tian Lv, Ji-Bin Zhang, Li-Ming Shen
Hepatic transcatheter arterial chemoembolization (TACE), a minimally invasive procedure to block the blood supply of tumors and release of cytotoxic agents, is preferentially applied to patients with hepatocellular carcinoma (HCC) who are not able to receive radical treatments. However, the long-term effects of TACE are unsatisfactory, as the microenvironment following procedure stimulates tumor angiogenesis, which promotes recurrence and metastasis of residual tumors. Tumor associated macrophages (TAMs) have been revealed to stimulate tumor growth and angiogenesis associated with poor prognosis in HCC...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943459/descriptive-cadaveric-study-comparing-the-accuracy-of-ultrasound-versus-fluoroscopic-guidance-for-first-sacral-transforaminal-injections
#2
Bradley F Thompson, Matthew J Pingree, Wenchun Qu, Naveen S Murthy, Nirusha Lachman, Mark Friedrich Hurdle
BACKGROUND: Ultrasound is rarely used for guiding lumbosacral epidural steroid injections due to its technical limitations. For example, sonographic imaging lacks the ability to confirm epidural spread and identify vascular uptake. The perceived risk that these limitations pose to human subjects has precluded any large scale clinical trials to date. OBJECTIVE: To compare the accuracy of ultrasound versus fluoroscopic guidance for first sacral transforaminal epidural injections DESIGN: Cadaveric comparative study using dichotomous outcomes...
September 21, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28943307/the-role-of-ultrasound-technology-in-plastic-surgery
#3
REVIEW
Tyler Safran, Kevin Gorsky, Alex Viezel-Mathieu, Jonathan Kanevsky, Mirko S Gilardino
INTRODUCTION: The modern medical era is in part characterized by the increased availability of portable imaging devices. Ultrasound devices are used for either high-resolution non-invasive imaging or as a focused acoustic energy source capable of sculpting and shaping tissue. Given the broad scope of the field, plastic and reconstructive surgeons have the unique ability to implement and tailor the use of ultrasound in a variety of clinical situations. This article will review novel uses for ultrasound in the field of plastic surgery...
September 13, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28942735/representation-of-cardiovascular-magnetic-resonance-in-the-aha-acc-guidelines
#4
Florian von Knobelsdorff-Brenkenhoff, Guenter Pilz, Jeanette Schulz-Menger
BACKGROUND: Whereas evidence supporting the diagnostic value of cardiovascular magnetic resonance (CMR) has increased, there exists significant worldwide variability in the clinical utilization of CMR. A recent study demonstrated that CMR is represented in the majority of European Society for Cardiology (ESC) guidelines, with a large number of specific recommendations in particular regarding coronary artery disease. To further investigate the gap between the evidence and clinical use of CMR, this study analyzed the role of CMR in the guidelines of the American College of Cardiology (ACC) and American Heart Association (AHA)...
September 25, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28942598/radiation-exposure-of-cardiac-sonographers-working-in-an-academic-noninvasive-cardiovascular-imaging-laboratory
#5
Michael R Velez, Maryellen H Orsinelli, David A Orsinelli
BACKGROUND AND AIM: Exposure to workplace radiation among cardiac sonographers has been felt to be low, and patient-related sources have been considered negligible. Sonographers may be exposed to radiation from patient emitted sources as well as external sources in interventional laboratories. This study quantified radiation exposure to cardiac sonographers. METHODS: Cardiac sonographers, vascular imaging technologists, exercise physiologists, noninvasive nursing staff, and CT/MRI technologists were provided body dosimeter badges...
September 24, 2017: Echocardiography
https://www.readbyqxmd.com/read/28942481/high-resolution-vessel-wall-mri-for-the-evaluation-of-intracranial-atherosclerotic-disease
#6
REVIEW
Adam de Havenon, Mahmud Mossa-Basha, Lubdha Shah, Seong-Eun Kim, Min Park, Dennis Parker, J Scott McNally
High-resolution vessel wall MRI (vwMRI) of the intracranial arteries is an emerging diagnostic imaging technique with the goal of evaluating vascular pathology. vwMRI sequences have high spatial resolution and directly image the vessel wall by suppressing blood signal. With vwMRI, it is possible to identify distinct morphologic and enhancement patterns of atherosclerosis that can provide important information about stroke etiology and recurrence risk. We present a review of vwMRI research in relation to intracranial atherosclerosis, with a focus on the relationship between ischemic stroke and atherosclerotic plaque T1 post-contrast enhancement or plaque/vessel wall morphology...
September 23, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28940706/applied-anatomy-for-tibial-intraosseous-access-in-adults-a-radioanatomical-study
#7
Onur Polat, Ahmet Burak Oguz, Muge Gunalp Eneyli, Ayhan Comert, Halil Ibrahim Acar, Eray Tuccar
INTRODUCTION: Intraosseous access is a method for providing vascular access in resuscitation of critically ill and injured patients when traditional intravenous access is difficult or impossible. There is a lack of detailed description for the landmark for the insertion point in the literature. The aim of this study was to determine the exact location for intraosseous access. MATERIALS AND METHODS: Radiographic computed tomography (CT) images of a total of 50 dry tibia bones were obtained...
September 22, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28939709/topography-and-determinants-of-magnetic-resonance-imaging-mri-visible-perivascular-spaces-in-a-large-memory-clinic-cohort
#8
Sara Shams, Juha Martola, Andreas Charidimou, Mykol Larvie, Tobias Granberg, Mana Shams, Maria Kristoffersen-Wiberg, Lars-Olof Wahlund
BACKGROUND: Magnetic resonance imaging-visible perivascular spaces (PVS) are related to interstitial fluid clearance pathways (including amyloid-β) in the brain and are suggested to be a marker of cerebral small vessel disease. We investigated the role, topography, and possible implications of PVS in cognitive impairment. METHODS AND RESULTS: A total of 1504 patients undergoing memory clinic investigation and an associated brain magnetic resonance imaging scan were included in this cross-sectional study...
September 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28939354/a-deep-learning-approach-to-estimate-chemically-treated-collagenous-tissue-nonlinear-anisotropic-stress-strain-responses-from-microscopy-images
#9
Liang Liang, Minliang Liu, Wei Sun
Biological collagenous tissues comprised of networks of collagen fibers are suitable for a broad spectrum of medical applications owing to their attractive mechanical properties. In this study, we developed a noninvasive approach to estimate collagenous tissue elastic properties directly from microscopy images using Machine Learning (ML) techniques. Glutaraldehyde-treated bovine pericardium (GLBP) tissue, widely used in the fabrication of bioprosthetic heart valves and vascular patches, was chosen to develop a representative application...
September 19, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28938402/the-pathophysiological-sequence-of-glucocorticoid-induced-osteonecrosis-of-the-femoral-head-in-male-mice
#10
Robert S Weinstein, Erin A Hogan, Michael J Borrelli, Serguei Liachenko, Charles A O'Brien, Stavros C Manolagas
In search of the sequence of pathogenic events leading to glucocorticoid-induced osteonecrosis, we determined the molecular, biomechanical, cellular, and vascular changes in the femur of C57BL/6 mice receiving prednisolone for 14, 28 or 42 days. The femoral head, but not the distal femur, of mice treated for 14 days showed a decrease in the expression of the hypoxia-inducible factor (Hif-1α) and vascular endothelial growth factor (VEGF), the number of osteoblasts, bone formation rate and strength and an increase in osteoclasts...
September 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938330/temporal-scalp-thickness-body-mass-index-and-suprafascial-placement-of-receiver-coil-of-the-cochlear-implant
#11
Orhan Ozturan, Alper Yenigun, Erol Senturk, Omer Faruk Calim, Fadlullah Aksoy, Sabri Baki Eren
OBJECTIVE: The objectives of this study are to demonstrate the relationship between the thickness of the temporal scalp and body mass index (BMI), age, and sex, and to present the surgical technique which we perform in patients with a thick scalp. MATERIALS AND METHODS: This is a retrospective, cross-sectional study. This study was performed in a tertiary referral center. Cranial computed tomography images of 469 subjects were included in the study. These subjects were evaluated according to BMI, age, and sex...
September 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28938160/nilotinib-enhances-tumor-angiogenesis-and-counteracts-vegfr2-blockade-in-an-orthotopic-breast-cancer-xenograft-model-with-desmoplastic-response
#12
Sara Zafarnia, Jessica Bzyl-Ibach, Igor Spivak, Yongping Li, Susanne Koletnik, Dennis Doleschel, Anne Rix, Sibylle Pochon, Isabelle Tardy, Seena Koyadan, Marc van Zandvoort, Moritz Palmowski, Fabian Kiessling, Wiltrud Lederle
Vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR)-targeted therapies predominantly affect nascent, immature tumor vessels. Since platelet-derived growth factor receptor (PDGFR) blockade inhibits vessel maturation and thus increases the amount of immature tumor vessels, we evaluated whether the combined PDGFR inhibition by nilotinib and VEGFR2 blockade by DC101 has synergistic therapy effects in a desmoplastic breast cancer xenograft model. In this context, besides immunohistological evaluation, molecular ultrasound imaging with BR55, the clinically used VEGFR2-targeted microbubbles, was applied to monitor VEGFR2-positive vessels noninvasively and to assess the therapy effects on tumor angiogenesis...
September 19, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28937859/choroidal-thickness-in-traumatic-optic-neuropathy
#13
Ju-Yeun Lee, Doo-Ri Eo, Kyung-Ah Park, Sei Yeul Oh
PURPOSE: To examine the choroidal thickness in patients with indirect traumatic optic neuropathy (TON) Methods: Patients with unilateral traumatic optic neuropathy over a period of 4 years were included in this study. Horizontal and vertical enhanced-depth imaging (EDI) from spectral-domain optical coherence tomography (SD-OCT) scans of the fovea were obtained in patients with unilateral TON within 2 weeks of injury. The main outcome measure was the choroidal thickness at nine locations...
September 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28937492/magnetic-resonance-imaging-of-the-soft-tissue-vascular-anomalies-in-torso-and-extremities-in-children-an-update-with-2014-international-society-for-the-study-of-vascular-anomalies-classification
#14
Elizabeth Snyder, Kate Puttgen, Sally Mitchell, Shivani Ahlawat, Aylin Tekes
Vascular anomalies can occur anywhere in the body, and the majority present in the pediatric population. Accurate classification is essential for proper clinical evaluation, particularly because multidisciplinary care is often required. The International Society for the Study of Vascular Anomalies classification offers a comprehensive classification for all subspecialties. In this review article, we present a magnetic resonance imaging protocol with exemplary cases of the most common types of vascular anomalies in the pediatric trunk and extremities using the current International Society for the Study of Vascular Anomalies classification...
September 20, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28937455/palliative-surgery-for-spinal-metastases-using-posterior-decompression-and-fixation-combined-with-intraoperative-vertebroplasty
#15
Liang Dong, Mingsheng Tan, Di Wu, Ping Yi, Feng Yang, Xiangsheng Tang, Qingying Hao
STUDY DESIGN: Retrospective study. OBJECTIVE: To evaluate the clinical outcome of palliative surgery using posterior decompression and fixation combined with intraoperative vertebroplasty (PDFIV) for the treatment of spinal metastases, and analyze the indications for PDFIV using a neurological, oncologic, mechanical, and systemic framework. SUMMARY OF BACKGROUND DATA: Palliative surgery is widely used to spinal metastatic patients with poor condition for enough postoperative recovery...
October 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28936892/initial-experience-with-cinematic-rendering-for-chest-cardiovascular-imaging
#16
Steven Rowe, Pamela Johnson, Elliot Fishman
Three-dimensional (3D) computed tomography (CT) with volume rendering (VR) and maximum intensity projection (MIP) is an integral component of CT interpretation for diagnosis and treatment planning of vascular pathology. Cinematic rendering (CR is a new rendering algorithm that incorporates a more advanced lighting model than that used for VR, to create photorealistic 3D CT images. The post-processing tool is not yet widely available and its ultimate clinical utility has yet to be assessed in well-designed studies...
September 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28935983/model-based-vascular-elastography-improves-the-detection-of-flow-induced-carotid-artery-remodeling-in-mice
#17
Vyacheslav A Korshunov, Hexuan Wang, Rifat Ahmed, Deanne M Mickelsen, Qian Zhou, Chen Yan, Marvin M Doyley
Increased arterial thickness measured with ultrasound correlates with future cardiovascular events, but conventional ultrasound imaging techniques cannot distinguish between intima, media, or atherosclerotic plaque in the carotid artery. In this work, we evaluated how well vascular elastography can detect intimal changes in a mouse model of carotid remodeling. We ligated the left external and internal branches of the carotid artery of male FVB mice and performed sham operations for 2 weeks. High-resolution ultrasound imaging accurately detected lower blood velocities and low blood volume flow in the carotid arteries after ligation in FVB mice...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935758/scavenger-receptor-cd36-directs-nonclassical-monocyte-patrolling-along-the-endothelium-during-early-atherogenesis
#18
Paola M Marcovecchio, Graham D Thomas, Zbigniew Mikulski, Erik Ehinger, Karin A L Mueller, Amy Blatchley, Runpei Wu, Yury I Miller, Anh Tram Nguyen, Angela M Taylor, Coleen A McNamara, Klaus Ley, Catherine C Hedrick
OBJECTIVE: Nonclassical monocytes (NCM) function to maintain vascular homeostasis by crawling or patrolling along the vessel wall. This subset of monocytes responds to viruses, tumor cells, and other pathogens to aid in protection of the host. In this study, we wished to determine how early atherogenesis impacts NCM patrolling in the vasculature. APPROACH AND RESULTS: To study the role of NCM in early atherogenesis, we quantified the patrolling behaviors of NCM in ApoE(-/-) (apolipoprotein E) and C57BL/6J mice fed a Western diet...
September 21, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28934833/hemodynamic-analysis-of-radiation-induced-damage-in-common-carotid-arteries-by-using-color-doppler-ultrasonography
#19
Alireza Mohammadkarim, Manijhe Mokhtari-Dizaji, Ali Kazemian, Hazhir Saberi
Purpose: The aim of this study was to assess vascular changes and blood flow abnormalities in the common carotid arteries of patients with head and neck cancers after external radiotherapy, using color Doppler ultrasonography. Methods: We studied 24 patients treated with external radiotherapy for various head and neck cancers. In order to study the acute effects of irradiation on common carotid blood flow and arterial diameter changes, color Doppler ultrasonography parameters such as peak systolic velocity, end diastolic velocity, mean velocity, systolic-to-diastolic velocity (S/D) ratio, pulsatility index (PI), resistive index (RI), and instantaneous diameter changes were evaluated before and after external radiotherapy...
April 14, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28933255/organizational-hierarchy-and-structural-diversity-of-microvascular-pericytes-in-adult-mouse-cortex
#20
Roger I Grant, David A Hartmann, Robert G Underly, Andrée-Anne Berthiaume, Narayan R Bhat, Andy Y Shih
Smooth muscle cells and pericytes, together called mural cells, coordinate many distinct vascular functions. Canonically, smooth muscle cells are ring-shaped and cover arterioles with circumferential processes, whereas pericytes extend thin processes that run longitudinally along capillaries. In between these canonical mural cell types are cells with features of both smooth muscle cells and pericytes. Recent studies suggest that these transitional cells are critical for controlling blood flow to the capillary bed during health and disease, but there remains confusion on how to identify them and where they are located in the brain microvasculature...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
keyword
keyword
8922
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"