keyword
MENU ▼
Read by QxMD icon Read
search

Doppler

keyword
https://www.readbyqxmd.com/read/28921420/causes-of-an-increased-pressure-gradient-through-the-left-ventricular-outflow-tract-a-west-coast-experience
#1
Sayuki Kobayashi, Yoshihiko Sakai, Isao Taguchi, Hiroto Utsunomiya, Takahiro Shiota
BACKGROUND: Left ventricular outflow tract obstruction (LVOTO) occurs from not only obstructive hypertrophic cardiomyopathy but also other conditions such as sigmoid septum or post mitral valve repair. However, the changes of the LVOT pressure gradient (LVOT PG) in LVOTO with various conditions remain unclear. METHODS: The clinical characteristics and echocardiographic parameters of 73 patients with LVOT PG ≥50 mmHg at rest on Doppler ultrasound were retrospectively investigated...
September 18, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28920055/distinguishing-testicular-torsion-from-torsion-of-the-appendix-testis-by-clinical-features-and-signs-in-patients-with-acute-scrotum
#2
Naoyuki Fujita, Mitsuhiro Tambo, Takatsugu Okegawa, Eiji Higashihara, Kikuo Nutahara
PURPOSE: Many physicians encounter confusion and difficulty in distinguishing testicular torsion (TT) from torsion of the appendix testis (TAT) in patients with acute scrotum because of the overlapping signs and symptoms. The objective of our study was to evaluate the clinical features and signs that can help distinguish TT from TAT. PATIENTS AND METHODS: We performed a retrospective study of patients with surgically confirmed TT and TAT at our institute from January 1990 to December 2013...
2017: Research and Reports in Urology
https://www.readbyqxmd.com/read/28919914/agreement-of-clinical-examination-and-ultrasound-methods-for-detection-of-joints-involvements-in-rheumatoid-arthritis
#3
Hadi Karimzadeh, Ramin Rafiei, Zahra Sayedbonakdar, Mehdi Karami
BACKGROUND: Rheumatoid arthritis is a chronic autoimmune disease characterized by synovial tissue inflammation and destruction of articular components which if not controlled properly, can cause disability in patients. For this reason, evaluation of disease activity and its control is very important. In recent years using sonography is promising for the evaluation of disease activity. This study aimed to compare "clinical examination" and "ultrasonography" methods in the detection of disease activity in patients with rheumatoid arthritis...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28919267/post-carotid-endarterectomy-hypertension-part-2-association-with-peri-operative-clinical-anaesthetic-and-transcranial-doppler-derived-parameters
#4
Jeremy E Newman, Mathew J Bown, Robert D Sayers, Jonathan P Thompson, Thompson G Robinson, Bryan Williams, Ronney Panerai, Peter Lacy, A Ross Naylor
OBJECTIVE/BACKGROUND: The first paper in this series observed that pre-operative baroreceptor dysfunction and poorly controlled hypertension were independently predictive for identifying patients who went on to require treatment for post-endarterectomy hypertension (PEH). The second paper examines the influence of intra-operative patient, transcranial Doppler (TCD) ultrasound, and anaesthetic variables on the incidence of PEH. METHODS: In total, 106 patients underwent carotid endarterectomy (CEA) under general anaesthesia...
September 14, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28918953/-superficial-temporal-artery-pseudoaneurysm-2-cases
#5
D Lebas, P Modiano, T Wiart
BACKGROUND: Pseudoaneurysm of the superficial temporal artery causes tumefaction in the temporal region. Herein, we report two cases. PATIENTS AND METHODS: Case 1 : a 32-year-old man presented with a slightly pulsatile nodular formation measuring 2 cm in the right temporal region that had appeared nine months after traumatic injury. A diagnosis of superficial temporal artery pseudoaneurysm was considered. Excision was performed with ligation of the afferent and efferent artery...
September 14, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28918904/comparison-of-laser-doppler-imaging-ldi-and-clinical-assessment-in-differentiating-between-superficial-and-deep-partial-thickness-burn-wounds
#6
Saadia Nosheen Jan, Farid Ahmed Khan, Muhammad Mustehsan Bashir, Muneeb Nasir, Hamid Hussain Ansari, Hussan Birkhez Shami, Umer Nazir, Asif Hanif, Muhammad Sohail
PURPOSE OF PRESENTATION/STUDY: To compare the accuracy of Laser Doppler Imaging (LDI) and clinical assessment in differentiating between superficial and deep partial thickness burns to decide whether early tangential excision and grafting or conservative management should be employed to optimize burn and patient management. STUDY PERIOD: March 2015 to November 2016. METHODS/PROCEDURE DETAILS: Ninety two wounds in 34 patients reporting within 5days of less than 40% burn surface area were included...
September 14, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28918687/comments-on-utero-placental-perfusion-doppler-indices-in-growth-restricted-fetuses-effect-of-sildenafil-citrate
#7
Ahmed M Abbas
No abstract text is available yet for this article.
September 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28918426/aortic-isthmus-flow-recording-predicts-the-outcome-of-the-recipient-twin-after-laser-coagulation-in-twin-twin-transfusion-syndrome
#8
France Leduc, Amélie Delabaere, Roxanne Gendron, Florent Fuchs, Sandrine Wavrant, Marie-Josée Raboisson, Jean-Claude Fouron, François Audibert
INTRODUCTION: The objective was to assess the prognostic value of the systolic flow through the aortic isthmus in monochorionic pregnancies complicated by twin-twin transfusion syndrome (TTTS) treated by placental laser ablation. MATERIAL AND METHODS: Fetal echocardiography and outcome data of 105 cases of TTTS treated by laser photocoagulation of placental anastomoses were reviewed. Hemodynamic parameters were collected before and after treatment. The isthmic systolic index (ISI) was calculated as the peak systolic velocity/systolic nadir ratio...
September 16, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28917680/effusive-constrictive-pericarditis-after-pericardiocentesis-incidence-associated-findings-and-natural-history
#9
Kye Hun Kim, William R Miranda, Larry J Sinak, Faisal F Syed, Rowlens M Melduni, Raul E Espinosa, Garvan C Kane, Jae K Oh
OBJECTIVES: This study sought to investigate the incidence, associated findings, and natural history of effusive-constrictive pericarditis (ECP) after pericardiocentesis. BACKGROUND: ECP is characterized by the coexistence of tense pericardial effusion and constriction of the heart by the visceral pericardium. Echocardiography is currently the main diagnostic tool in the assessment of pericardial disease, but limited data have been published on the incidence and prognosis of ECP diagnosed by echo-Doppler...
September 9, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28917288/intraoperative-imaging-for-vascular-lesions
#10
REVIEW
Vance L Fredrickson, Jonathan J Russin, Ben A Strickland, Joshua Bakhsheshian, Arun P Amar
Neurovascular surgery is a broad and challenging, yet exciting field within neurologic surgery. The neurovascular surgeon must be meticulous; because the brain and spinal cord are unforgiving to ischemic insults. Along with the pressures of this demanding subspecialty comes the potential to help patients recover from potentially devastating pathology to go on and lead normal, healthy lives. Several intraoperative imaging modalities are available to help maximize treatment success while reducing risk. This article reviews each of these modalities, including digital subtraction angiography, fluorescence angiography, Doppler ultrasonography, laser Doppler, laser speckle contrast imaging, neuronavigation, and neuroendoscopy...
October 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/28915847/absence-of-ultrasound-inflammation-in-patients-presenting-with-arthralgia-rules-out-the-development-of-arthritis
#11
Myrthe van der Ven, M van der Veer-Meerkerk, D F Ten Cate, N Rasappu, M R Kok, D Csakvari, J M W Hazes, A H Gerards, J J Luime
BACKGROUND: To decrease the burden of disease of rheumatoid arthritis (RA), patients at risk for RA need to be identified as early as possible, preferably when no clinically apparent synovitis can be detected. Up to now, it has been fairly difficult to identify those patients with arthralgia who develop inflammatory arthritis (IA), but recent studies using ultrasound (US) suggest that earlier detection is possible. We aimed to identify patients with arthralgia developing IA within 1 year using US to detect subclinical synovitis at first consultation...
September 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28915826/acupuncture-lowering-blood-pressure-for-secondary-prevention-of-stroke-a-study-protocol-for-a-multicenter-randomized-controlled-trial
#12
Yu-Zheng Du, Xin-Xin Gao, Cheng-Ting Wang, Hai-Zhen Zheng, Yun Lei, Meng-Han Wu, Xue-Min Shi, Hai-Peng Ban, Wen-Long Gu, Xiang-Gang Meng, Mao-Ti Wei, Chun-Xiao Hu
BACKGROUND: Stroke is the prime cause of morbidity and mortality in the general population, and hypertension will increase the recurrence and mortality of stroke. We report a protocol of a pragmatic randomized controlled trial (RCT) using blood pressure (BP)-lowering acupuncture add-on treatment to treat patients with hypertension and stroke. METHODS: This is a large-scale, multicenter, subject-, assessor- and analyst-blinded, pragmatic RCT. A total of 480 patients with hypertension and ischemic stroke will be randomly assigned to two groups: an experimental group and a control group...
September 15, 2017: Trials
https://www.readbyqxmd.com/read/28915818/the-impact-of-cardiovascular-co-morbidities-and-duration-of-diabetes-on-the-association-between-microvascular-function-and-glycaemic-control
#13
F Casanova, D D Adingupu, F Adams, K M Gooding, H C Looker, K Aizawa, F Dove, S Elyas, J J F Belch, P E Gates, R C Littleford, M Gilchrist, H M Colhoun, A C Shore, F Khan, W D Strain
BACKGROUND: Good glycaemic control in type 2 diabetes (T2DM) protects the microcirculation. Current guidelines suggest glycaemic targets be relaxed in advanced diabetes. We explored whether disease duration or pre-existing macrovascular complications attenuated the association between hyperglycaemia and microvascular function. METHODS: 743 participants with T2DM (n = 222), cardiovascular disease (CVD = 183), both (n = 177) or neither (controls = 161) from two centres in the UK, underwent standard clinical measures and endothelial dependent (ACh) and independent (SNP) microvascular function assessment using laser Doppler imaging...
September 15, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28914932/observation-of-7pp23-2%C3%A2-7dd2-optical-transitions-in-209-and-210-francium-isotopes
#14
S Agustsson, G Bianchi, R Calabrese, L Corradi, A Dainelli, A Khanbekyan, C Marinelli, E Mariotti, L Marmugi, G Mazzocca, L Moi, L Ricci, L Stiaccini, L Tomassetti
We report on the direct experimental observation of the 7pP23/2→7dD2 optical transitions in 209 and 210 francium isotopes. By continuously monitoring the fluorescence emitted by the isotopes collected in a magneto-optical trap (MOT), the electric dipole transitions 7pP23/2→7dD25/2 of Fr209, not yet experimentally observed, and 7pP23/2→7dD25/2, 7pP23/2→7dD25/2 of Fr210 were detected as sub-Doppler depletion dips of the cold atom population. This approach allowed unambiguous identification of the excited state hyperfine structures, even in the absence of a large stable vapor...
September 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28914897/dual-frequency-doppler-lidar-for-wind-detection-with-a-superconducting-nanowire-single-photon-detector
#15
Mingjia Shangguan, Haiyun Xia, Chong Wang, Jiawei Qiu, Shengfu Lin, Xiankang Dou, Qiang Zhang, Jian-Wei Pan
A dual-frequency direct detection Doppler lidar is demonstrated using a superconducting nanowire single-photon detector (SNSPD) at 1.5 μm. The so-called double-edge technique is implemented by using a dual-frequency laser pulse, rather than using a double-channel Fabry-Perot interferometer. Such a modification to the reported lidars enhances the frequency stability in the system level. Using the time-division multiplexing method, only one piece of SNSPD is used in the optical receiver, making the system simplified and robust...
September 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28914777/the-usefulness-of-contrast-enhanced-ultrasound-in-the-assessment-of-early-kidney-transplant-function-and-complications
#16
REVIEW
Sara Álvarez Rodríguez, Vital Hevia Palacios, Enrique Sanz Mayayo, Victoria Gómez Dos Santos, Víctor Díez Nicolás, María Dolores Sánchez Gallego, Javier Lorca Álvaro, Francisco Javier Burgos Revilla
OBJECTIVES: The routine diagnostic method for assessment of renal graft dysfunction is Doppler ultrasound. However, contrast-enhanced ultrasound (CEUS) may provide more information about parenchymal flow and vascular status of kidney allografts. The aim of the study was to assess the effectiveness of CEUS in the immediate post-transplant period, focusing on acute vascular complications. A brief review of available literature and a report of our initial experience is made. MATERIAL AND METHODS: 15 kidney transplant (KT) cases with clinical suspicion of acute surgical complication were assessed with CEUS and conventional Doppler ultrasound (US)...
September 15, 2017: Diagnostics
https://www.readbyqxmd.com/read/28914617/distribution-patterns-of-the-vulnerable-vessels-around-cervical-nerve-roots-a-computed-tomography-based-study
#17
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/28914371/serum-cystatin-c-is-associated-with-kidney-function-but-not-with-cardiovascular-risk-factors-or-subclinical-atherosclerosis-in-patients-with-systemic-lupus-erythematosus
#18
Patricia Garcia-Garcia, Raquel Castejon, Pablo Tutor-Ureta, R A Silvestre, Susana Mellor-Pita, Carlos Jimenez-Ortiz, Miguel Yebra-Bango
Cystatin C (CysC) is a protein considered as an excellent marker of renal function, and it has been suggested as an independent predictor of cardiovascular (CV) risk. We evaluated the association of serum CysC with renal function, CV risk factors, inflammation, and subclinical atherosclerosis in Systemic Lupus Erythematosus (SLE) patients. Sixty-one SLE female patients were selected according to estimated glomerular filtration rate (GFR) > 60 ml/min/1.73m(2). Renal function parameters, SLE specific factors, CV risk factors, and inflammatory markers were assessed...
September 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28913651/outcomes-of-percutaneous-portal-vein-intervention-in-a-single-uk-paediatric-liver-transplantation-programme
#19
Ravi Patel, Jeevan Mahaveer, Nasim Tahir, Sanjay Rajwal, Patricia McClean, Jai V Patel
INTRODUCTION: Percutaneous transluminal angioplasty (PTA), with or without stent placement, has become the treatment of choice for portal vein complications (PVC) following liver transplantation. We aimed to assess long-term outcomes of intervention in paediatric transplant recipients, in a single institution. MATERIALS AND METHODS: 227 children received 255 transplants between November 2000 and September 2016. 30 patients developed PVC of whom 21 had percutaneous intervention...
September 14, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28913410/contrast-microsphere-enhancement-of-the-tricuspid-regurgitant-spectral-doppler-signal-is-it-still-necessary-with-contemporary-scanners
#20
David G Platts, Manan Vaishnav, Darryl J Burstow, Christian Hamilton Craig, Jonathan Chan, John L Sedgwick, Gregory M Scalia
BACKGROUND: Accurate evaluation of the tricuspid regurgitant (TR) spectral Doppler signal is important during transthoracic echocardiographic (TTE) evaluation for pulmonary hypertension (PHT). Contrast enhancement improves Doppler backscatter. However, its incremental benefit with contemporary scanners is less well established. The aim of this study was to assess whether the TR spectral Doppler signal using contemporary scanners was improved using a second generation contrast agent, Definity® (CE), compared to unenhanced TTE (UE)...
December 2017: IJC Heart & Vasculature
keyword
keyword
4816
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"