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https://www.readbyqxmd.com/read/28453899/blood-flow-after-contraction-and-cuff-occlusion-is-reduced-in-subjects-with-muscle-soreness-after-eccentric-exercise
#1
Eduardo Souza-Silva, Steffan Wittrup Christensen, Rogerio Pessoto Hirata, Ryan Godsk Larsen, Thomas Graven-Nielsen
PURPOSE: Delayed onset muscle soreness (DOMS) occur within 1-2 days after eccentric exercise but the mechanism mediating hypersensitivity is unclear. This study hypothesized that eccentric exercise reduces the blood flow response following muscle contractions and cuff occlusion, which may result in accumulated algesic substances being a part of the sensitization in DOMS. METHODS: Twelve healthy subjects (5 women) performed dorsiflexion exercise (5 sets of 10 repeated eccentric contractions) in one leg, while the contralateral leg was the control...
April 28, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28446939/management-of-uterine-artery-pseudoaneurysm-advanced-ultrasonography-imaging-and-laparoscopic-surgery-as-an-alternative-method-to-angio-computed-tomography-and-transarterial-embolization
#2
Michał Ciebiera, Aneta Słabuszewska-Jóźwiak, Kornelia Zaręba, Grzegorz Jakiel
Uterine artery pseudoaneurysms (UAP) are rare but potentially life-threatening lesions. They may occur after traumatic deliveries, cesarean sections, and other interventions. We present a case of a 39-year-old woman with a UAP. The patient was accurately diagnosed using ultrasound imaging, with subsequent diagnostic hysteroscopy and laparoscopic excision of the UAP. In the present case, a ligation of the artery branch was performed to provide accurate hemostasis during UAP dissection. The vascular lesion was partially enucleated and removed, followed by recreation of the previous uterine shape...
2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/28439427/double-aorta-artifact-in-sonography-a-diagnostic-challenge
#3
REVIEW
Robert Hadzik, Przemysław Bombiński, Michał Brzewski
The double aorta artifact was described and studied thoroughly twenty-five years ago. Despite this, it is still not commonly known today and can cause diagnostic difficulty. Total aortic duplication can be considered an anatomic defect whilst partial duplication mimics aortic dissection. In the literature, this artifact has been compared with a very rare anomaly, i.e. the occurrence of two aortas in one patient. Currently, however, the differentiation of this artifact from abdominal aortic dissection seems to be of greater significance...
March 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28436857/real-time-triple-modal-photoacoustic-ultrasound-and-magnetic-resonance-fusion-imaging-of-humans
#4
Sara Park, Jongseong Jang, Jeesu Kim, Young Soo Kim, Chulhong Kim
Imaging that fuses multiple modes has become a useful tool for diagnosis and therapeutic monitoring. As a next step, real-time fusion imaging has attracted interest as for a tool to guide surgery. One widespread fusion imaging technique in surgery combines real-time ultrasound (US) imaging and preacquired magnetic resonance (MR) imaging. However, US imaging visualizes only structural information with relatively low contrast. Here, we present a photoacoustic (PA), US, and MR fusion imaging system which integrates a clinical PA and US imaging system with an optical tracking-based navigation subsystem...
April 24, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28436412/subinguinal-microsurgical-varicocelectomy-with-intraoperative-microvascular-doppler-ultrasound-leads-to-the-pain-free-outcome-after-surgery
#5
Kun-Long Lv, Ya-Dong Zhang, Jin-Tao Zhuang, Yong Gao, Liang Zhao, Zi Wan, Ming-Kuan Zhou, Jing-Wei Yu, Xiang-Zhou Sun, Yuan-Yuan Zhang, Xiang-An Tu
OBJECTIVE: To determine efficacy of intraoperative microvascular Doppler ultrasound in assisting subinguinal microsurgical varicocelectomy for pain relief in the treatment of painful varicoceles, compared to the microsurgery without Doppler ultrasound. METHODS: Total 153 patients underwent microsurgical varicocelectomy were randomly allocated to two groups: Groups 1 and 2 included 82 and 71 patients monitored with and without using intraoperative microvascular Doppler ultrasound, respectively...
April 18, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/28435568/early-vessels-exploration-of-pink-pulseless-hand-in-gartland-iii-supracondylar-fracture-humerus-in-children-facts-and-controversies
#6
T Z Tunku-Naziha, Wms Wan-Yuhana, D Hadizie, Muhammad-Paiman, S Abdul-Nawfar, W S Wan-Azman, M S Arman-Z, S Abdul-Razak, M Z Rhendra-Hardy, W I Wan-Faisham
The management of pink pulseless limbs in supracondylar fractures has remained controversial, especially with regards to the indication for exploration in a clinically well-perfused hand. We reviewed a series of seven patients who underwent surgical exploration of the brachial artery following supracondylar fracture. All patients had a non-palpable radial artery, which was confirmed by Doppler ultrasound. CT angiography revealed complete blockage of the artery with good collateral and distal run-off. Two patients were more complicated with peripheral nerve injuries, one median nerve and one ulnar nerve...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28435503/ultrasound-guided-radial-artery-compression-to-assess-blood-pressure
#7
Leonard Bunting, Andrew Butki, Ashley Sullivan
INTRODUCTION: We proposed using compression sonography to observe the coaptation and collapse of the radial artery as a surrogate for automated cuff blood pressures (BP). We hypothesize that the pressure required to achieve coaptation and complete collapse of the artery would correlate to the diastolic and systolic BP, respectively. This pilot study was to assess the feasibility of ultrasound-guided radial artery compression (URAC) for BP measurement and compare patient comfort levels during automated cuff with URAC measurements...
April 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28433335/treatment-of-peripheral-arterial-disease-via-percutaneous-brachial-artery-access
#8
Randall W Franz, Christopher F Tanga, Joseph W Herrmann
OBJECTIVE: This review was conducted to evaluate the types of endovascular procedures that can be performed via brachial artery access, evaluate the access success rate, and determine the incidence of technical complications. METHODS: A retrospective 10-year record review at a tertiary facility from January 1, 2005, through June 30, 2015, was completed. Patients who underwent attempted brachial artery access were eligible for review. Outcomes intended to be evaluated included ability to access the vessel, reach an identified lesion, and perform an indicated procedure, while describing the incidence and type of complications that occurred to clarify the utility and safety of brachial artery access...
April 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28432469/renal-findings-in-patients-with-mulibrey-nanism
#9
Johanna Sivunen, Susann Karlberg, Jouko Lohi, Niklas Karlberg, Marita Lipsanen-Nyman, Hannu Jalanko
BACKGROUND: Mulibrey nanism (MUL) is a rare inherited disease caused by genetic defects affecting peroxisomal TRIM37 protein. MUL affects multiple organs, leading to growth retardation and early onset type 2 diabetes. We aimed to characterize the structure and function of kidneys and the urinary tract in a large cohort of Finnish MUL patients. METHODS: Ultrasound, magnetic resonance imaging (MRI), and autopsy findings of the kidneys and urinary tract from 101 MUL patients were retrospectively analyzed...
April 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28431602/a-comprehensive-analysis-of-the-relationship-between-aca-velocities-and-aca-infarction-following-aneurysmal-subarachnoid-hemorrhage
#10
Michael Moussouttas, Jocelyn Cheng, Joseph Antonakakis, Ameesh Patel, Maria Iuanow
PURPOSE: To evaluate the relationship between anterior cerebral artery (ACA) velocities (and ancillary parameters) and ACA infarction following aneurysmal subarachnoid hemorrhage (aSAH), and to examine the factors that influence velocities. METHODS: Retrospective investigation of 500 consecutive aSAH patients. ACA mean velocities (Vm) were evaluated by daily transcranial ultrasound during the early (days 1-4) and late (days 5-20) periods posthemorrhage. Presence and timing of acute ACA infarctions were identified by serial retrospective review of cerebral computerized tomography (CT) scans...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431588/chiva-a-prospective-study-of-a-vein-sparing-technique-for-the-management-of-varicose-vein-disease
#11
Marta Zmudzinski, Pierre Malo, Christine Hall, Allen Hayashi
BACKGROUND: Varicose vein disease (VVD) affects approximately one third of adults. Cure Conservatrice et Hémodynamique de l'Insuffisance Veineuse en Ambulatoire (CHIVA) is a minimally invasive, vein sparing technique that is emerging as an alternative to ablative techniques for treating VVD. METHODS: This prospective study assessed the rate of recurrence of venous reflux with CHIVA. We evaluated 150 primary procedures with clinical and duplex ultrasound examinations pre and post operatively...
April 4, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28430714/ultrasound-molecular-imaging-of-inflammation-in-mouse-abdominal-aorta
#12
Shiying Wang, Sunil Unnikrishnan, Elizabeth B Herbst, Alexander L Klibanov, Frank William Mauldin, John A Hossack
OBJECTIVES: The aim of this study was to demonstrate a new clinically translatable ultrasound molecular imaging approach, modulated acoustic radiation force-based imaging, which is capable of rapid and reliable detection of inflammation as validated in mouse abdominal aorta. MATERIALS AND METHODS: Animal studies were approved by the Institutional Animal Care and Use Committee at the University of Virginia. C57BL/6 mice stimulated with tumor necrosis factor α, or fed with a high-fat diet, were used as inflammation (MInflammation) and diet-induced obesity (DIO) (MDIO) models, respectively...
April 20, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28426695/a-comparative-study-of-pediatric-open-pyeloplasty-laparoscopy-assisted-extracorporeal-pyeloplasty-and-robot-assisted-laparoscopic-pyeloplasty
#13
Sang Hoon Song, Chanwoo Lee, Jaeyoon Jung, Sung Jin Kim, Sungchan Park, Hyungkeun Park, Kun Suk Kim
PURPOSE: To compare the outcomes of open pyeloplasty (OP), laparoscopy-assisted extracorporeal (LEXP), and robotic-assisted laparoscopic pyeloplasty (RALP) for ureteropelvic junction obstruction in pediatric patients. METHODS: We retrospectively reviewed the age-matched cohort of 30 children who underwent OP, 30 who underwent LEXP, and 10 who underwent RALP at a single institution, from 1996 to 2014. Pre- and post-operative variables including success rate were compared among surgical groups...
2017: PloS One
https://www.readbyqxmd.com/read/28423999/toe-brachial-index-measured-by-automated-device-compared-to-duplex-ultrasonography-for-detecting-peripheral-arterial-disease-in-older-people
#14
Jennifer Sonter, Peta Tehan, Vivienne Chuter
Introduction To investigate the diagnostic accuracy of an automated toe blood pressure device for detecting peripheral arterial disease in older people. Methods Ninety participants underwent toe and brachial blood pressure measurements and colour duplex ultrasonography of the right lower limb. Peripheral arterial disease was diagnosed if > 50% arterial obstruction was identified in any lower limb vessel using colour duplex ultrasonography. A receiver operating characteristic curve was analysed and the sensitivity and specificity of commonly used toe brachial index and toe blood pressure values were determined...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28422657/phased-array-ultrasound-system-for-planar-flow-mapping-in-liquid-metals
#15
Kevin Mader, Richard Nauber, Vladimir Galindo, Hannes Beyer, Lars Buttner, Sven Eckert, Jurgen Czarske
Controllable magnetic fields can be used to optimize flows in technical and industrial processes involving liquid metals in order to improve quality and yield. However, experimental studies in magnetohydrodynamics (MHD) often involve complex, turbulent flows and require planar, two-component velocity measurements through only one acoustical access. We present the phased array ultrasound Doppler velocimeter (PAUDV) as a modular research platform for flow mapping in liquid metals. It combines the pulse wave Doppler method with the phased array technique to adaptively focus the ultrasound beam...
April 12, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28422656/fast-plane-wave-2-d-vector-flow-imaging-using-transverse-oscillation-and-directional-beamforming
#16
Jonas Jensen, Carlos A Villagomez-Hoyos, Matthias B Stuart, Caroline Ewertsen, Michael R Nielsen, Jorgen Jensen
Several techniques can estimate the 2-D velocity vector in ultrasound. Directional beamforming (DB) estimates blood flow velocities with a higher precision and accuracy than transverse oscillation (TO), but at the cost of a high beamforming load when estimating the flow angle. In this paper, it is proposed to use TO to estimate an initial flow angle, which is then refined in a DB step. Velocity magnitude is estimated along the flow direction using cross-correlation. It is shown that the suggested TO-DB method can improve the performance of velocity estimates compared to TO, and with a beamforming load, which is 4...
April 12, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28421855/midterm-outcomes-after-infrapopliteal-interventions-in-patients-with-critical-limb-ischemia-based-on-the-tasc-ii-classification-of-below-the-knee-arteries
#17
Gagan D Singh, Ellen K Brinza, Justin Hildebrand, Stephen W Waldo, T Raymond Foley, John R Laird, Ehrin J Armstrong
PURPOSE: To analyze the relationship between the new TransAtlantic Inter-Society Consensus (TASC II) infrapopliteal classification and limb outcomes among patients with critical limb ischemia (CLI). METHODS: A single-center retrospective study was performed on 166 consecutive CLI patients (mean age 71 years; 113 men) undergoing endovascular treatment of 244 infrapopliteal lesions from 2006 to 2013. Patient, procedural, angiographic, and limb outcomes were compared for the new TASC A/B vs C/D classification for infrapopliteal lesions...
April 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28419014/impact-of-ultrasound-on-short-peripheral-intravenous-catheter-placement-on-vein-thrombosis-risk
#18
Max R Holder, Sonja E Stutzman, DaiWai M Olson
Approximately 90% of hospitalized patients have a short peripheral intravenous catheter (SPC) placed. Methods of inserting the catheter have evolved over time and now include the use of ultrasound (US)-guided procedures for placement. Little is known about the impact that US-guided procedures have on the vein. This study compared the rate of venous thrombosis in patients with and without US-guided catheter placement. This prospective, single-blind, observational study assessed for venous thrombosis in 153 veins from 135 patients...
May 2017: Journal of Infusion Nursing: the Official Publication of the Infusion Nurses Society
https://www.readbyqxmd.com/read/28417646/cerebral-hemodynamic-assessment-and-neuroimaging-across-the-lifespan-in-sickle-cell-disease
#19
Lori C Jordan, Michael R DeBaun
Children and adults with sickle cell anemia (SCA) have a higher risk of strokes compared to age- and race-matched peers. Velocity in the middle cerebral or distal internal carotid artery as measured by transcranial Doppler ultrasound is a recognized method to identify children but not adults with SCA at high-risk for first stroke. For both children and adults with SCA that have had a stroke, no methods clearly identify individuals at highest risk of recurrent strokes or an initial silent stroke, the most common neurological injury...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28417266/guided-longer-pulses-from-a-diagnostic-ultrasound-and-intraclot-microbubble-enhanced-catheter-directed-thrombolysis-in-vivo
#20
Shunji Gao, Qiong Zhu, Xiaoxiao Dong, Zhong Chen, Zheng Liu, Feng Xie
The mechanism of ultrasound thrombolysis (UT) is generally attributed to cavitation. The insufficiency of microbubbles (MB) to serve as cavitation nuclei in the vessel-obstructing thrombi significantly reduces the effectiveness of UT. Taking advantage of the widely performed catheter-directed therapy (CDT), in a thrombo-embolized rabbit IVC model with a simultaneous catheter directed rt-PA thrombolysis procedure, guided moderate mechanical index longer pulses from a modified diagnostic ultrasound transducer, combined with an intraclot infusion of MB, significantly accelerated the thrombolysis process...
April 17, 2017: Journal of Thrombosis and Thrombolysis
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