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https://www.readbyqxmd.com/read/28651422/-meta-analysis-on-the-diagnostic-value-of-laser-doppler-imaging-for-burn-depth
#1
Y Huang, L Qiu, A L Mei, J X Li
Objective: To evaluate the value of laser Doppler imaging (LDI) in diagnosing deep or superficial partial-thickness burn wound with meta-analysis. Methods: Databases including PubMed, Cochrane Library were searched using key words " burn, burns, burn depth, laser Doppler imaging, laser Doppler perfusion imaging, LDI, LDPI" , and Chinese Journals Full-text Database, Wanfang Database, VIP Database were searched using Chinese key words ",,,," to obtain the published trials of LDI in diagnosing deep or superficial partial-thickness burn wound from the establishment of each database to October 2015...
May 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28651099/brain-shift-compensation-using-intraoperative-ultrasound-and-constraint-based-biomechanical-simulation
#2
Fanny Morin, Hadrien Courtecuisse, Ingerid Reinertsen, Florian Le Lann, Olivier Palombi, Yohan Payan, Matthieu Chabanas
PURPOSE: During brain tumor surgery, planning and guidance are based on preoperative images which do not account for brain-shift. However, this deformation is a major source of error in image-guided neurosurgery and affects the accuracy of the procedure. In this paper, we present a constraint-based biomechanical simulation method to compensate for craniotomy-induced brain-shift that integrates the deformations of the blood vessels and cortical surface, using a single intraoperative ultrasound acquisition...
June 15, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28650926/hypercapnia-induced-amelioration-of-the-intestinal-microvascular-oxygenation-in-sepsis-is-independent-of-the-endogenous-sympathetic-nervous-system
#3
Jan Schulz, Sabrina Schöneborn, Christian Vollmer, Richard Truse, Anna Herminghaus, Inge Bauer, Christopher Beck, Olaf Picker
INTRODUCTION: Insufficient microvascular oxygenation (μHBO2) of the intestinal mucosa worsens outcome of septic patients. Hypercapnia ameliorates μHBO2, mediated via endogenous vasopressin release. Under physiological conditions, blockade of the endogenous sympathetic nervous system abolishes this protective effect of hypercapnia. The aim of our study was therefore to evaluate the role of the endogenous sympathetic nervous system during hypercapnia on intestinal μHBO2 under septic conditions...
June 23, 2017: Shock
https://www.readbyqxmd.com/read/28650810/expanding-acquisition-and-clutter-filter-dimensions-for-improved-perfusion-sensitivity
#4
Min Woo Kim, Craig K Abbey, Jamila Hedhli, Lawrence W Dobrucki, Michael F Insana
A method is explored for increasing the sensitivity of power-Doppler imaging without contrast enhancement. We acquire 1-10 s of echo signals and arrange it into a 3-D spatiotemporal data array. An eigenfilter developed to preserve all three dimensions of the array yields power estimates for blood flow and perfusion that are well separated from tissue clutter. This method is applied at high frequency (24 MHz pulses) to a murine model of an ischemic hindlimb. We demonstrate enhancements to tissue perfusion maps in normal and ischemic tissues...
June 26, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28650763/posttraumatic-retronychia-of-the-foot-with-clinical-and-ultrasound-correlation
#5
Mariana Pizarro, Nicolás Pieressa, Ximena Wortsman
Retronychia, the posterior embedding of the nail bed into the proximal nail fold, can be a complex clinical dermatologic diagnosis that may mimic other inflammatory ungual diseases or tumors of the nail. It has been related to a history of severe systemic conditions that secondarily affect the nail matrix and is commonly associated with onychomadesis. We present a case of retronychia of the foot with a purely traumatic origin, nonconcomitant with onychomadesis, that was diagnosed by color Doppler ultrasound in a long-time practitioner of martial arts who was otherwise healthy...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28650083/additional-value-of-b-flow-imaging-in-arterial-wall-calcifications
#6
Fabrizio D'Abate, Jorg L de Bruin
The accuracy of color Doppler ultrasonography (CDU) is hampered by the presence of arterial wall calcifications. B-flow imaging may overcome these limitations. We present a case of a severely calcified stenosis of the right common femoral artery (CFA) diagnosed with the aid of B-flow imaging. Both the CT angiography scan and CDU were limited by the presence of diffuse dense arterial calcifications. B-flow imaging showed a >75% stenosis of the CFA. B-flow imaging appears to improve the accuracy of CDU in the presence of calcified stenosis of the CFA...
June 26, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28648919/myocardial-strain-rate-by-anatomic-doppler-spectrum-first-clinical-experience-using-retrospective-spectral-tissue-doppler-from-ultra-high-frame-rate-imaging
#7
Lars Christian Naterstad Lervik, Birger Brekke, Svein Arne Aase, Mai Tone Lønnebakken, Dordi Stensvåg, Brage H Amundsen, Hans Torp, Asbjorn Støylen
Strain rate imaging by tissue Doppler (TDI) is vulnerable to stationary reverberations and noise (clutter). Anatomic Doppler spectrum (ADS) presents retrospective spectral Doppler from ultra-high frame rate imaging (UFR-TDI) data for a region of interest, that is, ventricular wall or segment, at one time instance. This enables spectral assessment of strain rate (SR) without the influence of clutter. In this study, we assessed SR with ADS and conventional TDI in 20 patients with a recent myocardial infarction and 10 healthy volunteers...
June 22, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28648794/in-vitro-and-in-vivo-evaluation-of-a-coaxial-electrospun-small-caliber-vascular-graft-loaded-with-heparin-and-vegf
#8
Yuntao Hu, Xudong Pan, Jun Zheng, Weiguo Ma, Lizhong Sun
INTRODUCTION: To date, clinically available expanded polytetrafluoro- Ethylene (ePTFE) vascular grafts are suboptimal for reconstructing small Caliber (D<;6mm)arteries, owing to thrombosis in early and restenosis in; late stage. Our aim in this preliminary study was to fabricate a nano-fibrous vascular graft which was biofunctionalized with VEGF and hepa-rin. The short term performance was evaluated both in vitro and in vivo. METHOD: 4 mm caliber grafts were prepared by the coaxial-elctrospun technique, which consisted of poly (l-lactide-co-caprolactone) [P (LLA-CL)] collagen and elastin...
June 22, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28648580/flowmetry-evolution-in-microvascular-surgery-a-systematic-review
#9
REVIEW
Georgios Pafitanis, Maria Raveendran, Simon Myers, Ali M Ghanem
This review aims to provide a summary of the flowmeter devices used in microvascular surgery and assesses their contribution to improving the clinical outcomes of free tissue transfer. Flowmeters are widely accepted as the standard method of intraoperative assessment of the patency of coronary vascular anastomoses, providing thresholds that predict outcome. There is limited evidence regarding the use of flow measurements in plastic surgery microvascular anastomoses; however, flowmetry appears to have some role in postoperative free flap monitoring and prevention of complications...
May 20, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28648573/personalized-treatment-with-immunoadsorption-and-intravenous-immunoglobulin-in-a-case-of-severe-rh-alloimmunization-during-pregnancy-unresponsive-to-plasma-exchange
#10
Anna Colpo, Tiziana Tison, Maria Teresa Gervasi, Cinzia Vio, Maria Vicarioto, Giustina De Silvestro, Piero Marson
INTRODUCTION: Despite prophylaxis, a small proportion of RhD-negative women may develop anti-D antibodies after a sensitizing event occurring during pregnancy or delivery of a D-positive baby. Intrauterine transfusion (IUT) is the treatment of choice in case of fetal anemia, but it cannot be performed early during pregnancy. Combined treatment with therapeutic plasma-exchange (TPE) and intravenous immunoglobulin (IVIG) can avoid or delay IUT. Immunoadsorption (IA) could represent a more effective treatment in selected cases...
June 6, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28648431/an-echocardiographic-clue-for-ostial-left-main-coronary-artery-stenosis
#11
Firdevs Aysenur Ekizler, Ozcan Ozeke, Adem Grbolar, Kenan Omurlu, Zehra Golbasi, Omac Tufekcioglu, Erdogan Ilkay
Calcified nodules in human coronary arteries are usually focally distributed. Non-invasive imaging of coronary arteries by bedside emergency transthoracic echocardiography in adults is possible and may become a useful adjunct to other methods of coronary artery examination. Coronary artery stenosis can be identified as localized color aliasing and accelerated flow velocities. Complete visualization of individual ostial coronary segments might ease the demonstration of coronary stenosis by bedside transthoracic echocardiography...
May 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28648418/longitudinal-ventricular-systolic-dysfunction-in-patients-with-very-severe-obstructive-sleep-apnea-a-case-control-study-using-speckle-tracking-imaging
#12
Mithun Jacob Varghese, Gautam Sharma, Garima Shukla, Sandeep Seth, Sundeep Mishra, Anupama Gupta, Vinay Kumar Bahl
OBJECTIVE: Obstructive sleep apnea (OSA) is a prevalent condition that is increasingly recognized to be associated with cardiovascular disease. We aimed to investigate the subclinical systolic ventricular dysfunction of patients with OSA using novel speckle tracking echocardiographic (STE) techniques. METHODS: This study included 31 patients of polysomnography proven very severe OSA [Apnea Hypopnea Index(AHI) >40] and an equal number of matched population with no OSA as controls...
May 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28648116/emboli-and-cognitive-state-in-surgical-vs-transcatheter-aortic-valve-replacement
#13
Tom Friedman, Oved Cohen, Avishai Ziser, Arthur Kerner, Keren Bitton-Worms, Gil Bolotin
Background Neurologic complications and neurocognitive impairment due to cerebral emboli are common following heart surgery. This study aimed to compare the number of emboli detected in the middle cerebral artery in open aortic valve replacement, apical and femoral transcatheter aortic valve replacement, and also to test for an association between the number of emboli captured in each procedure and changes in the patient's cognitive state. Methods Forty-four patients were enrolled in the study, 36 of whom were included in the final analyses: 14 underwent open aortic valve replacement, 2 had femoral transcatheter aortic valve replacement, and 10 had apical transcatheter aortic valve replacement...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28647890/comparison-of-lercanidipine-plus-hydrochlorothiazide-vs-lercanidipine-plus-enalapril-on-micro-and-macrocirculation-in-patients-with-mild-essential-hypertension
#14
Carolina De Ciuceis, Massimo Salvetti, Anna Paini, Claudia Rossini, Maria Lorenza Muiesan, Sarah Duse, Stefano Caletti, Maria Antonietta Coschignano, Francesco Semeraro, Valentina Trapletti, Fabio Bertacchini, Valeria Brami, Alina Petelca, Enrico Agabiti Rosei, Damiano Rizzoni, Claudia Agabiti Rosei
Dihydropyridine calcium channel blockers may possess antioxidant properties, and might improve micro and macrovascular structure and function. Combination treatment with an ACE inhibitor may have additional advantages, compared with a thiazide diuretic. The aim of the present study is to investigate the effects of a short-term treatment with lercanidipine, and to compare two combination treatments: lercanidipine + enalapril vs. lercanidipine + hydrochlorothiazide on structural alterations in retinal arterioles, on skin capillary density and on large artery distensibility...
June 24, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28647634/more-successful-results-with-less-energy-in-endovenous-laser-ablation-treatment-long-term-comparison-of-bare-tip-fiber980nm-laser-and-radial-tip-fiber1470nm-laser-application
#15
Ümit Arslan, Eyüpserhat Çalık, Mehmet Tort, Ziya Yıldız, Ali İhsan Tekin, Hüsnü Kamil Limandal, Mehmet Ali Kaygın, Özgür Dağ, Bilgehan Erkut
BACKGROUND: Varices and venous insufficiency are common and serious health problems in the general population which affect quality of life. Endothermal treatment of the great saphenous vein has become the first line of treatment for superficial venous reflux, and the endovenous laser ablation (EVLA) method has been widely accepted all over the world. In this method, ablation is provided by a laser fiber inserted into the lumen of the vein. Initially, the fibers were 810 nm, but today the fibers are usually 940, 980, or 1470 nm...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647478/embolization-of-ovarian-vein-for-pelvic-congestion-syndrome-with-ethylene-vinyl-alcohol-copolymer-onyx-%C3%A2
#16
C Marcelin, J Izaaryene, M Castelli, P A Barral, A Jacquier, V Vidal, J M Bartoli
PURPOSE: To evaluate the safety and efficacy of pelvic embolization using ethylene vinyl alcohol copolymer (Onyx(®)) for pelvic congestion syndrome. MATERIAL AND METHODS: Between March 2012 to September 2016, 17 women (mean age, 44.7± 12.2 (SD) years; range: 34-71years) presenting with pelvic congestion syndrome were evaluated for transvenous embolization with Onyx(®). Pelvic congestion syndrome was initially diagnosed by clinical examination and the results of transvaginal Doppler ultrasound and further confirmed by pelvic venography...
June 21, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28646703/comparison-of-type-2-diabetes-prevalence-in-chinese-migrants-vs-caucasians-and-new-perspectives-for-screening-of-cerebrovascular-disease-in-chinese-a-proof-of-concept-study
#17
Pietro A Modesti, Sergio Castellani, Maria Calabrese, Danilo Malandrino, Dong Zhao
AIMS: Type 2 diabetes (T2DM) is a recognized risk factor for intracranial stenosis (ICS) in China where ischemic stroke is a health priority. In Europe little information is available on T2DM prevalence among Chinese minority groups and vascular screening is commonly limited to extracranial vessels. Feasibility of community-based T2DM screening, differences in T2DM prevalence between Chinese migrants and Italians, and prevalence of ICS among Chinese patients with newly diagnosed T2DM were investigated...
June 13, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28646597/a-contrast-enhanced-ultrasonographic-study-about-the-impact-of-long-term-exercise-training-on-mammary-tumor-vascularization
#18
Ana I Faustino-Rocha, Adelina Gama, Paula A Oliveira, Katrien Vanderperren, Jimmy H Saunders, Maria J Pires, Rita Ferreira, Mário Ginja
OBJECTIVES: This study aimed to evaluate the impact of long-term exercise training on the vascularization of rat mammary tumors. METHODS: Female rats were divided into 4 groups: N-methyl-N-nitrosourea (MNU) treated sedentary, MNU treated exercised, control sedentary, and control exercised. Tumor development was induced in the MNU groups by MNU administration. Exercised groups were trained for 35 weeks. Tumor vascularization was evaluated by pulsed Doppler and contrast-enhanced ultrasonography...
June 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28646464/early-retreatment-after-surgical-clipping-of-ruptured-intracranial-aneurysms
#19
Yoshiro Ito, Tetsuya Yamamoto, Go Ikeda, Wataro Tsuruta, Kazuya Uemura, Yoji Komatsu, Akira Matsumura
BACKGROUND: Although a rerupture after surgical clipping of ruptured intracranial aneurysms is rare, it is associated with high morbidity and mortality. The causes for retreatment and rupture after surgical clipping are not clearly defined. METHODS: From a prospectively maintained database of 244 patients who had undergone surgical clipping of ruptured intracranial aneurysms, we selected patients who experienced retreatment or rerupture within 30 days after surgical clipping...
June 23, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28646319/presence-of-enthesopathy-in-patients-with-primary-sjogren-s-syndrome-ultrasonographic-study-of-a-local-cohort
#20
Sinem Sag, Mustafa Serdar Sag, Ibrahim Tekeoglu, Ayhan Kamanlı, Kemal Nas
BACKGROUND: Musculoskeletal findings in Sjögren's syndrome are arthralgia, arthritis, myalgia, myositis, fibromyalgia, and chronic fatigue. Enthesis zones are important in the formation of pain in the musculoskeletal system. Musculoskeletal ultrasound (US) may show subclinical enthesitis in the synovial joints and in the axial skeleton before joint swelling in inflammatory diseases characterized by arthritis. OBJECTIVE: In this study, we aimed to determine the presence of enthesopathy using the Madrid sonographic enthesitis index (MASEI) in patients with primary Sjögren's syndrome (PSS)...
June 23, 2017: Journal of Medical Ultrasonics
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