keyword
MENU ▼
Read by QxMD icon Read
search

Resistive index doppler

keyword
https://www.readbyqxmd.com/read/27919218/a-glycemic-threshold-of-90-mg-dl-promotes-early-signs-of-atherosclerosis-in-apparetly-healthy-overweight-obese-subjects
#1
Marco Matteo Ciccone, Francesca Cortese, Michele Gesualdo, Ilaria Donvito, Santa Carbonara, Giovanni De Pergola
BACKGROUND: Alterations of glucose metabolism represent well known risk factors for the atherosclerotic process and then for cardiovascular disease. OBJECTIVE: to investigate the association between fasting glucose and early signs of atherosclerosis, by means of carotid intima-media thickness (c-IMT) in a population of apparently healthy overweight/obese subjects. In addition, we evaluated the possible existence of a glycemic threshold above which the risk of atherosclerosis significantly increases...
December 5, 2016: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/27908671/effect-of-gnrh-and-hcg-on-progesterone-concentration-and-ovarian-and-luteal-blood-flow-in-diestrous-mares
#2
L F C Brito, J M Baldrighi, C A Wolf, O J Ginther
The objective of the present study was to investigate the effect of reproductive hormones (GnRH, hCG, LH and progesterone) on the regulation of corpus luteum (CL) and ovarian blood flow. Diestrous mares received a single treatment of saline, 100μg gonadorelin (GnRH), or 1500IU hCG 10days after ovulation. Plasma LH and progesterone concentrations, resistance index (RI) for ovarian artery blood-flow, and percentage of corpus luteum (CL) with color-Doppler signals of blood flow were determined immediately before treatment (hour 0) and at hours 0...
November 23, 2016: Animal Reproduction Science
https://www.readbyqxmd.com/read/27900821/the-predictive-value-of-resistive-index-obtained-by-doppler-ultrasonography-early-after-renal-transplantation-on-long-term-allograft-function
#3
Engin Melek, Esra Baskın, Kaan Gulleroglu, Nihal Uslu, Mahir Kırnap, Gokhan Moray, Mehmet Haberal
DUSG is a useful diagnostic tool for the follow-up of renal transplant recipients. The measurement of intrarenal arterial RI by DUSG has been proven to predict short-term AF. The aim of the study was to evaluate the predictive value of DUSG performed during the early after RTx on long-term AF. Seventy patients were enrolled into study. DUSG was performed at third and seventh days after RTx. Patients were divided into two groups according to rate of recovery of graft function as patients with normal graft function and abnormal graft function...
November 29, 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/27898579/carotid-arterial-flow-in-pseudoexfoliation-glaucoma-and-its-role-in-diagnosing-the-disease
#4
Burcin Uz, Yasemin Durum, Tolga Kocatürk, Yelda O Dayanir, Volkan Dayanir, Mehmet Bilgen
OBJECTIVE OF THE STUDY: The objective of the study was to investigate the change in carotid arterial flow in pseudoexfoliation glaucoma (XFG) for determining its diagnostic value. MATERIALS AND METHODS: Patients with XFG (N=30) and control subjects (N=22) were recruited. Common carotid artery (CCA) and internal carotid artery of each participant were examined using color Doppler and B-mode ultrasonography. Resistivity index (RI), as a flow parameter of interest, was measured and statistically compared between the 2 groups...
December 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27894116/intrarenal-vascular-resistance-is-associated-with-a-prothrombotic-state-in-hypertensive-patients
#5
Cristiana Catena, GianLuca Colussi, Marileda Novello, Valentina Fagotto, Leonardo A Sechi
BACKGROUND/AIMS: Hypertensive nephroangiosclerosis is associated with progressive increase of intrarenal vascular resistance. In addition to blood pressure, other factors can contribute to hypertensive renal damage including a prothrombotic state. We investigated the relationship between hemostatic markers and intrarenal vascular resistance in hypertension. METHODS: In 115 untreated, nondiabetic, hypertensive subjects free of cardiovascular complications and advanced renal function impairment, we measured 24-hour creatinine clearance (GFR) and urinary albumin excretion (UAE), fasting plasma glucose, HOMA-index, and plasma levels of fibrinogen, D-dimer, prothrombin fragment 1+2, plasminogen activator inhibitor-1, homocysteine, and lipoprotein(a)...
November 29, 2016: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/27889713/prognostic-value-of-resistive-index-in-neonates-with-hypoxic-ischemic
#6
A Senthil Kumar, Aparna Chandrasekaran, Rajamannar Asokan, Kathirvelu Gopinathan
OBJECTIVE: To evaluate the role of Resistive Index measured by cranial doppler ultrasonography in predicting the risk of death/ abnormal neurodevelopmental outcomes in term neonates with hypoxic ischemic encephalopathy. METHODS: We enrolled 50 term asphyxiated neonates with hypoxic ischemic encephalopathy and measured resistive index within 72 hours from the anterior cerebral artery. Participants underwent tone and developmental assessment at 6-12 months. RESULTS: Among the 50 neonates, 25 (50%) had abnormal resistive index (<0...
November 5, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27880816/paradoxical-sleep-deprivation-causes-cardiac-dysfunction-and-the-impairment-is-attenuated-by-resistance-training
#7
Sara Quaglia de Campos Giampá, Marcos Mônico-Neto, Marco Tulio de Mello, Helton de Sá Souza, Sergio Tufik, Kil Sun Lee, Marcia Kiyomi Koike, Alexandra Alberta Dos Santos, Ednei Luiz Antonio, Andrey Jorge Serra, Paulo José Ferreira Tucci, Hanna Karen Moreira Antunes
BACKGROUND: Paradoxical sleep deprivation activates the sympathetic nervous system and the hypothalamus-pituitary-adrenal axis, subsequently interfering with the cardiovascular system. The beneficial effects of resistance training are related to hemodynamic, metabolic and hormonal homeostasis. We hypothesized that resistance training can prevent the cardiac remodeling and dysfunction caused by paradoxical sleep deprivation. METHODS: Male Wistar rats were distributed into four groups: control (C), resistance training (RT), paradoxical sleep deprivation for 96 hours (PSD96) and both resistance training and sleep deprivation (RT/PSD96)...
2016: PloS One
https://www.readbyqxmd.com/read/27872414/effect-of-low-dose-aspirin-on-midluteal-phase-uterine-artery-blood-flow-in-patients-with-recurrent-pregnancy-loss
#8
Xiaomin Kang, Tongfei Wang, Liyin He, Haijing Xu, Zhilan Liu, Aimin Zhao
OBJECTIVES: The purpose of this study was to evaluate differences in uterine artery blood flow parameters and pregnancy outcomes, if any. An investigation was conducted to determine the effects of low-dose aspirin on uterine artery blood flow indices in patients with recurrent pregnancy loss. METHODS: This observational study included 353 Chinese women with a history of recurrent pregnancy loss and 85 women without a history of recurrent pregnancy loss (control group) from Ren Ji Hospital...
December 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27862239/quantitative-echocardiographic-measures-in-the-assessment-of-single-ventricle-function-post-fontan-incorporation-into-routine-clinical-practice
#9
Rodrigo Rios, Salil Ginde, David Saudek, Rohit S Loomba, Jessica Stelter, Peter Frommelt
BACKGROUND: Quantitative echocardiographic measurements of single ventricular (SV) function have not been incorporated into routine clinical practice. METHODS: A clinical protocol, which included quantitative measurements of SV deformation (global circumferential and longitudinal strain and strain rate), standard deviation of time to peak systolic strain, myocardial performance index (MPI), dP/dT from an atrioventricular valve regurgitant jet, and superior mesenteric artery resistance index, was instituted for all patients with a history of Fontan procedure undergoing echocardiography...
November 16, 2016: Echocardiography
https://www.readbyqxmd.com/read/27843181/erectile-dysfunction-in-anterior-urethral-strictures-after-urethroplasty-with-reference-to-vascular-parameters
#10
Soumya Mondal, Anindya Bandyopadhyay, Murari Mohan Mandal, Dilip Kumar Pal
BACKGROUND: Relation of erectile dysfunction (ED) with urethroplasty has long been a subject of debate. Very few studies on subcontinent population are available in this regard and still rarer are studies assessing vascular parameters of ED following urethroplasty. The objective of the study was to assess the incidence and prevalence of ED in patients of urethral stricture disease, and to find out effect of urethroplasty on ED after six months of operation including vasculogenic aetiology after operation...
October 2016: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/27831924/transient-fetal-blood-redistribution-associated-with-maternal-supine-position
#11
Karina P Silva, Tatiana Emy N K Hamamoto, Roseli M Y Nomura
OBJECTIVE: To investigate whether fetal blood circulation is influenced by the maternal supine position. METHODS: The inclusion criteria were good health, a singleton pregnancy, maternal age between 18 and 40 years, gestational age between 36 and 40 weeks, and an agreement to participate in the study. Each participant (n=20) was initially asked to adopt the left lateral position for 5 min, while fetal Doppler measurements were taken of the fetal middle cerebral artery (MCA), umbilical artery (UA), and umbilical vein (UV)...
November 10, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27819194/role-of-doppler-ultrasonography-in-defining-normal-and-abnormal-graft-hemodynamics-after-living-donor-liver-transplant
#12
Omar Abdelaziz, Sally Emad-Eldin, Ahmed Hussein, Ayman M A Osman
OBJECTIVES: Our aim was to investigate the early changes that occur after graft perfusion in living-donor liver transplant by Doppler ultrasonography. MATERIALS AND METHODS: We prospectively evaluated liver grafts of 30 patients who underwent living-donor liver transplant during an 18-month period and who were followed for 1 year postoperatively. The hepatic artery peak systolic velocity, resistivity index, portal vein velocity, portal vein anastomotic velocity ratio, and hepatic vein pattern were compared after excluding patients who developed vascular complications and acute rejection episodes...
October 14, 2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27807899/canine-reproductive-ultrasound-examination-for-predicting-future-sperm-quality
#13
Gcw England, L Bright, B Pritchard, I M Bowen, M B de Souza, Ldm Silva, R Moxon
The reproductive potential of male animals is commonly evaluated using a breeding soundness examination incorporating B-mode ultrasound examination of the testes and recently Doppler ultrasound examination of the testicular arteries. These techniques may detect testicular normality or pathology, and while some measured parameters are associated with semen quality at the time of ultrasound examination, few studies have investigated the relationship with future semen quality. We hypothesized that B-mode and Doppler ultrasound measurements would correlate with future semen quality...
November 3, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27807888/uterine-haemodynamic-vascularization-and-blood-pressure-changes-along-the-oestrous-cycle-in-bitches
#14
I B Nogueira, L L Almeida, Dsr Angrimani, M M Brito, R A Abreu, C I Vannucchi
Characterization of the bitch's reproductive physiology is of utmost importance for the development of new reproductive techniques and the diagnosis of reproductive diseases. In this respect, uterine B-mode ultrasonography has been employed in several studies; however, the focus on haemodynamic changes along the oestrous cycle is yet to be described. Thus, the aim of this study was to characterize haemodynamic changes (uterine vascularization, systemic arterial blood pressure and heart rate) throughout the oestrous cycle in bitches...
November 3, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27799177/non-invasive-measurement-of-renal-perfusion-and-oxygen-metabolism-to-predict-postoperative-acute-kidney-injury-in-neonates-and-infants-after-cardiopulmonary-bypass-surgery
#15
F Neunhoeffer, M Wiest, K Sandner, H Renk, E Heimberg, C Haller, M Kumpf, C Schlensak, M Hofbeck
BACKGROUND: The pathophysiology of acute kidney injury (AKI) after cardiopulmonary bypass surgery for congenital heart disease is not completely understood. The aim of this study was to carry out a prospective analysis of the diagnostic value of non-invasive monitoring of renal oxygenation and microcirculation by combining laser Doppler flowmetry and tissue spectrometry. METHODS: In 50 neonates and infants who underwent repair (n = 31) or neonatal palliation (n = 19) of congenital heart disease with cardiopulmonary bypass, renal oxygenation, and microcirculatory flow, the approximate renal metabolic rate of oxygen and Doppler-based renal resistive index were determined after surgery...
November 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27792267/very-low-birth-weight-bronchopulmonary-dysplasia-survivors-had-similar-cardiac-outcomes-to-controls-at-6-14-years-of-age
#16
Piia Suursalmi, Anneli Eerola, Tuija Poutanen, Päivi Korhonen, Tarja Kopeli, Outi Tammela
AIM: This study evaluated cardiac function and its associations with lung function and neonatal pulmonary morbidity in very low birth weight (VLBW) children, with and without severe radiographic bronchopulmonary dysplasia (radBPD), at school age. METHODS: We examined 18 VLBW children with radBPD, 17 VLBW children without radBPD and 18 healthy term-born children using conventional echocardiography, tissue Doppler imaging, speckle tracking echocardiography and real-time three-dimensional echocardiography at 6-14 years of age...
October 28, 2016: Acta Paediatrica
https://www.readbyqxmd.com/read/27790544/diagnostic-accuracy-of-b-mode-usg-and-doppler-scan-for-ovarian-lesions
#17
Mamta Goyal, Vinish Kumar Agarwal
INTRODUCTION: Ultrasonography (USG) is considered as the primary imaging modality for confirmation of ovarian mass and to differentiate them in to benign or malignant. AIM: The present study was conducted with the aim to evaluate accuracy of B- mode USG and Doppler scan (Colour Doppler + Spectral Doppler) for ovarian lesions. MATERIALS AND METHODS: The patients included in the study were from those referred with either palpable adnexal mass or incidentally detected adnexal masses...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27784154/evaluation-of-factors-influencing-arterial-doppler-waveforms-in-an-in-vitro-flow-phantom
#18
Chang Kyu Sung, Kyoung Ho Lee, Seung Hyup Kim
Purpose: The aim of this study was to investigate factors that influence arterial Doppler waveforms in an in vitro phantom to provide a more accurate and comprehensive explanation of the Doppler signal. Methods: A flow model was created using a pulsatile artificial heart, rubber or polyethylene tubes, a water tank, and a glass tube. Spectral Doppler tracings were obtained in multiple combinations of compliance, resistance, and pulse rate. Peak systolic velocity, minimum diastolic velocity, resistive index (RI), pulsatility index, early systolic acceleration time, and acceleration index were measured...
July 7, 2016: Ultrasonography
https://www.readbyqxmd.com/read/27776714/assessment-for-pulmonary-artery-hypertension-using-clinical-and-echocardiographic-criteria-in-patients-with-systemic-sclerosis
#19
Nadera Methia, Samia Latreche, Omar Ait Mokhtar, Jean-Jacques Monsuez, Salim Benkhedda
BACKGROUND: Prognosis of systemic sclerosis (SSc) is affected by pulmonary artery hypertension (PAH). METHODS: Among 202 patients (mean age: 46.1 ± 13.3 years; 177 women) with SSc, those with a tricuspid regurgitation (TR) jet maximal velocity at 2D-echocardiography (2DE) < 2.8m/second were not considered at high risk for PAH, whereas those with a TR velocity >3m/second or between 2.8 and 3m/second and associated with dyspnea were. RESULTS: Among 22 patients at risk, 15 (mean age: 50...
October 2016: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/27767969/actual-vs-optimal-fetal-hematocrit-measured%C3%A2-with-punctures-of-cord-blood-in%C3%A2-utero-relationship-with-umbilical-artery%C3%A2-resistance
#20
Brun Jean-Frédéric, Boulot Pierre, Varlet-Marie Emmanuelle
Physiological studies on fetal blood in narrow glass tubes have suggested that fetal optimal hematocrit (hct) might be as high as 60%. A theoretical 'ideal' hct can also be predicted with a theoretical curve of hematocrit/viscosity (h/η) ratio vs hct constructed with Quemada's model. We used the database of one of our previous papers on fetal hemorheology to reinterpret its results with this concept. A series of 28 intrauterine cord punctures (between 19 and 33 weeks gestation) with doppler measurements of resistance in umbilical arteries was studied...
October 18, 2016: Clinical Hemorheology and Microcirculation
keyword
keyword
92602
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"