keyword
MENU ▼
Read by QxMD icon Read
search

Ultrasound vessels

keyword
https://www.readbyqxmd.com/read/28922103/budd-chiari-syndrome
#1
Tomáš Grus, Lukáš Lambert, Gabriela Grusová, Rohan Banerjee, Andrea Burgetová
Budd-Chiari syndrome (BCS) is a rare disease with an incidence of 0.1 to 10 per million inhabitants a year caused by impaired venous outflow from the liver mostly at the level of hepatic veins and inferior vena cava. Etiological factors include hypercoagulable conditions, myeloprolipherative diseases, anatomical variability of the inferior vena cava, and environmental conditions. Survival rates in treated patients range from 42 to 100% depending on the etiology and the presence of risk factors including parameters of Child-Pugh score, sodium and creatinine plasma levels, and the choice of treatment...
2017: Prague Medical Report
https://www.readbyqxmd.com/read/28916599/directional-atherectomy-followed-by-a-paclitaxel-coated-balloon-to-inhibit-restenosis-and-maintain-vessel-patency-twelve-month-results-of-the-definitive-ar-study
#2
Thomas Zeller, Ralf Langhoff, Krishna J Rocha-Singh, Michael R Jaff, Erwin Blessing, Beatrice Amann-Vesti, Marek Krzanowski, Patrick Peeters, Dierk Scheinert, Giovanni Torsello, Sebastian Sixt, Gunnar Tepe
BACKGROUND: Studies assessing drug-coated balloons (DCB) for the treatment of femoropopliteal artery disease are encouraging. However, challenging lesions, such as severely calcified, remain difficult to treat with DCB alone. Vessel preparation with directional atherectomy (DA) potentially improves outcomes of DCB. METHODS AND RESULTS: DEFINITIVE AR study (Directional Atherectomy Followed by a Paclitaxel-Coated Balloon to Inhibit Restenosis and Maintain Vessel Patency-A Pilot Study of Anti-Restenosis Treatment) was a multicenter randomized trial designed to estimate the effect of DA before DCB to facilitate the development of future end point-driven randomized studies...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28914752/ct-attenuation-of-pericoronary-adipose-tissue-in-normal-versus-atherosclerotic-coronary-segments-as-defined-by-intravascular-ultrasound
#3
Mohamed Marwan, Michaela Hell, Annika Schuhbäck, Sören Gauss, Daniel Bittner, Tobias Pflederer, Stephan Achenbach
BACKGROUND: The factors influencing genesis of atherosclerosis at specific regions within the coronary arterial system are currently uncertain. Local mechanical factors such as shear stress as well as metabolic factors, including inflammatory mediators released from epicardial fat, have been proposed. We analyzed computed tomographic (CT) attenuation of pericoronary adipose tissue in normal versus atherosclerotic coronary segments as defined by intravascular ultrasound (IVUS). PATIENTS AND METHODS: We evaluated the data sets of 29 patients who were referred for invasive coronary angiography and in whom IVUS of 1 coronary vessel was performed for clinical reasons...
September 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28914617/distribution-patterns-of-the-vulnerable-vessels-around-cervical-nerve-roots-a-computed-tomography-based-study
#4
Donghwi Park
OBJECTIVE: The aim of the study was to evaluate the prevalence of vulnerable vessels around the target of cervical transforaminal epidural steroid injection at the C3-C7 cervical nerve root levels in a clinical setting. DESIGN: Retrospective, cross-sectional study was conducted. PARTICIPANTS: Patients complaining of neck or arm pain with no previous surgical history and who had undergone both precontrast and contrast-enhanced neck computed tomography were included retrospectively...
September 13, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28912005/proximal-radial-artery-arteriovenous-fistula-for-hemodialysis-vascular-access
#5
William C Jennings, Alexandros Mallios, Nasir Mushtaq
OBJECTIVE: This study reviewed our experience with proximal radial artery-based arteriovenous fistulas (PRA-AVFs) for hemodialysis vascular access, evaluating characteristics of the patients, functional patency, risk of steal syndrome, survival of the patient, and technical considerations. METHODS: We retrospectively analyzed our database of consecutive patients, identifying those individuals with a PRA-AVF created during a 12-year period. In addition to physical examination, all patients underwent ultrasound vessel mapping by the operating surgeon, identifying the PRA-AVF configuration and outflow target most likely to succeed...
September 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28910426/optical-coherence-tomography-angiography-features-of-iris-racemose-hemangioma-in-4-cases
#6
Jason L Chien, Kareem Sioufi, Sandor Ferenczy, Emil Anthony T Say, Carol L Shields
Importance: Optical coherence tomography angiography (OCTA) allows visualization of iris racemose hemangioma course and its relation to the normal iris microvasculature. Objective: To describe OCTA features of iris racemose hemangioma. Design, Setting, and Participants: Descriptive, noncomparative case series at a tertiary referral center (Ocular Oncology Service of Wills Eye Hospital). Patients diagnosed with unilateral iris racemose hemangioma were included in the study...
September 14, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28902753/nonoperative-management-and-novel-imaging-for-posterior-circumflex-humeral-artery-injury-in-volleyball
#7
Daan van de Pol, R Nils Planken, Aart Terpstra, Marja Pannekoek-Hekman, P Paul F M Kuijer, Mario Maas
We report on a 34-yr-old male elite volleyball player with symptomatic emboli in the spiking hand from a partially thrombosed aneurysm of the posterior circumflex humeral artery (PCHA) in his dominant shoulder. At initial diagnosis and follow-up, a combination of time-resolved and high-resolution steady state contrast-enhanced magnetic resonance angiography (CE-MRA) enabled detailed visualization of: (1) emboli that were not detectable by vascular ultrasound; and (2) the PCHA aneurysm, including compression during abduction and external rotation (ABER provocation)...
September 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28899572/hypoglossal-nerve-palsy-in-the-course-of-dissection-of-the-internal-carotid-arteries-case-reports
#8
Magdalena Torbus-Paluszczak, Sebastian Mucha, Maciej Wawrzyńczyk, Krystyna Pierzchała, Wojciech Bartman, Monika Adamczyk-Sowa
Internal carotid artery dissection (ICAD) has become an increasingly recognized cause of cerebrovascular accidents in young and middle-aged patients. We report 2 cases of hypoglossal nerve palsy in the course of dissection of the internal carotid arteries. The first patient was admitted to the Department of Neurology due to swallowing difficulty, speech articulation disorders and numbness of the right half of the tongue for 4 weeks. Extracranial vessel ultrasound (US) and transcranial colour Doppler (TCD) visualized thrombus causing occlusion of the right internal carotid artery (RICA)...
August 30, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28898419/a-block-matching-based-approach-with-multiple-simultaneous-templates-for-the-real-time-2d-ultrasound-tracking-of-liver-vessels
#9
Andrew J Shepard, Bo Wang, Thomas K F Foo, Bryan P Bednarz
PURPOSE: The implementation of motion management techniques in radiation therapy can aid in mitigating uncertainties and reducing margins. For motion management to be effective, it is necessary to track key structures both accurately and at a real-time speed. Therefore, the focus of this work was to develop a 2D algorithm for the real-time tracking of ultrasound features to aid in radiation therapy motion management. MATERIALS AND METHODS: The developed algorithm utilized a similarity measure-based block matching algorithm incorporating training methods and multiple simultaneous templates...
September 12, 2017: Medical Physics
https://www.readbyqxmd.com/read/28893795/serial-3-vessel-optical-coherence-tomography-and-intravascular-ultrasound-analysis-of-changing-morphologies-associated-with-lesion-progression-in-patients-with-stable-angina-pectoris
#10
Myong Hwa Yamamoto, Kennosuke Yamashita, Mitsuaki Matsumura, Akiko Fujino, Masaru Ishida, Seitarou Ebara, Toshitaka Okabe, Shigeo Saito, Koichi Hoshimoto, Kisaki Amemiya, Tadayuki Yakushiji, Naoei Isomura, Hiroshi Araki, Chiaki Obara, Thomas McAndrew, Masahiko Ochiai, Gary S Mintz, Akiko Maehara
BACKGROUND: Optical coherence tomographic (OCT) morphologies associated with lesion progression are not well studied. The aim of this study was to determine the morphological change for untreated lesion progression using both OCT and intravascular ultrasound (IVUS). METHODS AND RESULTS: We used baseline and 8-month follow-up 3-vessel OCT and IVUS to assess 127 nonculprit lesions (IVUS plaque burden ≥40%) in 45 patients with stable angina after target lesion treatment...
September 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28892425/laparoscopic-resection-of-a-pancreatic-%C3%AE-cell-tumor-in-a-dog
#11
Janet Kovak Mcclaran, Philippa Pavia, Anthony J Fischetti, Taryn A Donovan
Laparoscopic partial pancreatectomy has been performed in experimental canine studies and has been evaluated in human medicine but has not been reported in a clinical veterinary case. The authors present a 9 yr old field spaniel with weakness and hypoglycemia with insulin levels and Amended Insulin: Glucose Ratio results equivocal for a pancreatic insulinoma. Multiple abdominal ultrasounds did not detect the tumor, yet dual-phase computed tomographic angiography revealed the presence of a focal hypoattenuating nodule in the left lobe of the pancreas...
September 11, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28887713/determinants-of-slow-flow-following-stent-implantation-in-intravascular-ultrasound-guided-primary-percutaneous-coronary-intervention
#12
Yusuke Watanabe, Kenichi Sakakura, Yousuke Taniguchi, Kei Yamamoto, Hiroshi Wada, Hideo Fujita, Shin-Ichi Momomura
Slow flow is a serious complication in primary percutaneous coronary intervention (PCI) and is associated with poor clinical outcomes. Intravascular ultrasound (IVUS)-guided PCI may improve clinical outcomes after drug-eluting stent implantation. The purpose of this study was to seek the factors of slow flow following stent implantation, including factors related to IVUS-guided primary PCI. The study population consisted of 339 ST-elevation myocardial infarction patients, who underwent stent deployment with IVUS...
September 8, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28886806/high-frequency-ultrasound-examination-in-the-diagnosis-of-skin-cancer
#13
REVIEW
Robert L Bard
Ultrasound above 14 MHz images epidermis, dermis, and subcutaneous tissues in real time. Tumor depth is ascertained with B-mode. Three-dimensional imaging depicts nonpalpable, in-transit, and satellite lesions. Doppler blood flow technologies measure tumor neovascularity and map vascular structures. Three-dimensional Doppler histogram reconstruction measures tumor aggression and metastatic potential proportional to the percentage of malignant vessels. Subcutaneous investigation reveals nonpalpable metastatic disease and nodal basin lymphadenopathy...
October 2017: Dermatologic Clinics
https://www.readbyqxmd.com/read/28884736/-the-application-of-low-frequency-ultrasound-for-the-comprehensive-treatment-and-rehabilitation-of-the-patients-presenting-with-chronic-endometritis
#14
Yu V Kovaleva
The incidence of chronic endometritis remains rather high despite considerable progress in reproductive medicine including the advent of the new methods for assisted reproduction; the pregnancy rate after the treatment of this condition is still unacceptably low. It implies the necessity of the careful preparation of endometrium for the implantation of the embryo especially in women with a history of unsuccessful outcomes of the IVF treatment. It calls for the development of the efficient therapeutic modalities for the management of chronic endometritis and restoration of the normal reproductive function; their introduction into the therapeutic algorithm remains equally relevant...
2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/28884348/extravesical-robotic-ureteral-reimplantation-for-ureterovaginal-fistula
#15
Brian J Linder, Igor Frank, John A Occhino
INTRODUCTION: We present a video describing the technical considerations for performing an extravesical robotic ureteral reimplantation. METHODS: A 55-year old woman presented with urinary incontinence secondary to a ureterovaginal fistula after robotic-assisted hysterectomy. After failure of more conservative measures, she proceeded to a robotic ureteral reimplantation. Following port placement, the ureter is identified at the level of the iliac vessels and dissected circumferentially...
September 7, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28875230/b-flow-sonography-for-evaluation-of-basal-cerebral-arteries-in-newborns
#16
M Groth, M Ernst, P Deindl, J Herrmann
The aim of the study was to evaluate the B‑flow sonography (BFS) to image the basal cerebral arteries in newborn infants. For this purpose 34 newborns, who underwent standardized ultrasound of the brain including BFS, color Doppler (CDS) and power Doppler (PDS) techniques were retrospectively assessed. Delineation of the anterior communicating (Acom), the posterior communicating (Pcom), the middle cerebral (M1 and M2 segments), the anterior cerebral (A1 and A2 segments), and the posterior cerebral artery (P1 and P2 segments) were visually scored...
September 5, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28868753/a-spaghetti-sign-in-feline-abdominal-radiographs-predicts-spleno-systemic-collateral-circulation
#17
Swan Specchi, Ioannis Panopoulοs, Anna M Adrian, Giliola Spattini, Simona Morabito, Matthew Paek
A well-defined, tortuous, and tubular soft tissue opaque structure has been observed within the left mid abdominal cavity in digital radiographs of some cats. Authors hypothesized that this radiographic "spaghetti sign" is a predictor for spleno-systemic collateral circulation. The purpose of this multicenter, retrospective, descriptive study was to further characterize radiographic "spaghetti signs" in a group of cats and compare these signs with results of ultrasonography or computed tomography (CT). A multiinstitutional database was reviewed for radiographic reports describing the presence of a tubular tortuous structure within the left abdominal cavity of feline patients...
September 3, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28867010/mid-term-clinical-outcomes-of-absorb-bioresorbable-vascular-scaffold-versus-everolimus-eluting-stent-for-coronary-bifurcation-lesions
#18
Toru Naganuma, Hiroyoshi Kawamoto, Vasileios F Panoulas, Azeem Latib, Akihito Tanaka, Satoru Mitomo, Neil Ruparelia, Richard J Jabbour, Alaide Chieffo, Mauro Carlino, Matteo Montorfano, Antonio Colombo
BACKGROUND: Data regarding bioresorbable vascular scaffolds (BVS) use in coronary bifurcation lesions are limited. The aim of this study was to compare mid-term clinical outcomes of all-comer patients treated with BVS versus everolimus-eluting stents (EES) for bifurcation lesions. METHODS: A total of 351 non-left-main bifurcation lesions in 323 all-comer patients were treated either with BVS (166 bifurcations in 147 patients) or EES (185 bifurcations in 176 patients)...
November 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28860105/ascertaining-the-value-of-noninvasive-measures-obtained-using-color-duplex-ultrasound-and-central-aortic-pressure-monitoring-during-the-management-of-cerebral-arteriovenous-malformation-resection-protocol-for-a-prospective-case-control-pilot-study
#19
Kathryn J Busch, Hosen Kiat
BACKGROUND: Dramatic hemodynamic changes occur upon removal of an arteriovenous malformation of the brain (bAVM) with a number of potentially serious perioperative complications, such as intracranial hemorrhage and venous occlusive hypertensive syndrome. As these complications largely occur in the postoperative inpatient period, a rapid, repeatable noninvasive investigation to serially monitor relevant intracranial hemodynamics may be of benefit. Though, transcranial Doppler (TCD) and transcranial color duplex (TCCD) are techniques used and available to provide hemodynamic measurements postoperatively, the time course of hemodynamic sequences following bAVM resection remains uncertain...
August 31, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28859746/oxalosis-in-a-patient-with-livedo-reticularis
#20
Meriam Triki, Meriem Ksentini, Rim Kallel, Emna Bahloul, Faiçal Jarraya, Abderrahmen Masmoudi, Tahya Boudawara
A 27-year-old man with terminal renal failure requiring peritoneal dialysis for the past 2 years was referred to the dermatologist for evaluation of red violaceous macular skin lesions consistent with livedo reticularis. These lesions had appeared suddenly on his legs (Figure 1). He had first experienced recurrent nephrolithiasis at the age of 14. Results from urine analysis and abdominal ultrasound revealed chronic kidney failure. Because the patient had a sister with similar findings, primary hyperoxaluria (PH) was suspected and genetic testing was performed in all members of his family...
2017: Skinmed
keyword
keyword
97128
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"