keyword
MENU ▼
Read by QxMD icon Read
search

Doppler sonography

keyword
https://www.readbyqxmd.com/read/28931296/-translaminar-gradient-and-glaucoma
#1
J Čmelo
OBJECTIVE: The cribriform plate is a threshold of the intraocular pressure (VOT) and of the intracranial pressure (IKT). The difference between the VOT and IKT is referred to as translaminar gradient (TLG). The goal was to evaluate the Glaucoma progression (visual field, fundus examination, HRT) with / without topical anti-glaucomatous therapy) in relation to the TLG. PATIENTS AND METHODS: the significance of TLG has been studied in two groups. I. Group: 57 patients diagnosed and treatment of Primary Open-Angle Glaucoma (PGOU), 10 patients with Ocular hypertension (OH), 7 patients with Normal-Tension Glaucoma (NTG), and 75 healthy without glaucoma...
2017: Ceská a Slovenská Oftalmologie
https://www.readbyqxmd.com/read/28928674/the-gly-16-allele-of-the-g16r-single-nucleotide-polymorphism-in-the-%C3%AE-2-adrenergic-receptor-gene-augments-the-glycemic-response-to-adrenaline-in-humans
#2
Kim Z Rokamp, Jonatan M Staalsø, Morten Zaar, Peter Rasmussen, Lonnie G Petersen, Rikke V Nielsen, Niels H Secher, Niels V Olsen, Henning B Nielsen
Cerebral non-oxidative carbohydrate consumption may be driven by a β2-adrenergic mechanism. This study tested whether the 46G > A (G16R) single nucleotide polymorphism of the β2-adrenergic receptor gene (ADRB2) influences the metabolic and cerebrovascular responses to administration of adrenaline. Forty healthy Caucasian men were included from a group of genotyped individuals. Cardio- and cerebrovascular variables at baseline and during a 60-min adrenaline infusion (0.06 μg kg(-1) min(-1)) were measured by Model flow, near-infrared spectroscopy and transcranial Doppler sonography...
2017: Frontiers in Physiology
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/28891535/doppler-sonographic-evaluation-of-venogenic-extremity-swellings-analysis-of-170-patients-from-kano-nigeria
#4
A Ismail, A M Tabari, K Isyaku
INTRODUCTION: Deep venous thrombosis (DVT) is a serious problem that can potentially lead to many complications including life-threatening pulmonary arterial thrombosis. Screening and confirmation of the diagnosis are critical in the care of this condition. OBJECTIVES: The objective of this study was to evaluate the role of Doppler sonography in diagnosing DVT and to illustrate the pattern in 170 suspected cases from our local environment. MATERIALS AND METHODS: This study was conducted at our department over 18 months...
August 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28891218/prostate-vascular-flow-the-effect-of-the-ejaculation-on-the-power-doppler-ultrasonographic-examination
#5
S Alonge, M Melandri, L Fanciullo, G M Lacalandra, G Aiudi
Power Doppler sonography (PD) can accurately depict tissue perfusion, recognize slow flows, and is relatively angle independent. The monitoring of local blood flow by Doppler ultrasonography is helpful in differentiating prostatic physio-pathological conditions, but the recognizing of physiological variables that could affect it is crucial to apply this technique in clinical practice. This study aimed to evaluate if ejaculation affects blood flow to the prostate and to state how long this effect lasts. Serial PD examinations of prostate were performed in 18 dogs (1-5 years, 6-40 kg) immediately before (T0) and after (T1) the ejaculation, and repeated 6 (T2), 18 (T3) and 24 (T4) hours later...
September 11, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28885737/vascular-pattern-analysis-on-microvascular-sonography-for-differentiation-of-pleomorphic-adenomas-and-warthin-tumors-of-salivary-glands
#6
Inseon Ryoo, Sangil Suh, Young Hen Lee, Hyung Suk Seo, Hae Young Seol, Jeong-Soo Woo, Soo Chin Kim
OBJECTIVES: Pleomorphic adenomas and Warthin tumors are the most common salivary gland tumors. It is important to differentiate between them because at least a partial parotidectomy is necessary for pleomorphic adenomas, whereas enucleation is sufficient for Warthin tumors. This study aimed to evaluate the usefulness of vascular pattern analysis using microvascular sonography to differentiate between the tumors. METHODS: Sixty-two patients with pathologically proven pleomorphic adenomas (n = 38) and Warthin tumors (n = 24) were included...
September 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28884241/torsed-appendix-epididymis-in-an-adult-misdiagnosis-as-tumor-of-tunica-vaginalis-on-sonography
#7
Dal Mo Yang, Hyun Cheol Kim, Sang Won Kim, Ji Su Kim, Kyu Yeoun Won
We report the sonographic findings in a case of torsed appendix epididymis that occurred in an adult, which was misdiagnosed as a tunica vaginalis tumor such as cystic mesothelioma. Scrotal gray-scale sonography revealed an ovoid-shaped, heterogeneously hypoechoic mass with multiple tiny cystic foci and thick septa in the sac of the right tunica vaginalis, which abuts to the right epididymal head. Color Doppler sonography showed no blood flow within the mass. Pathological examination revealed torsion of the appendix epididymis...
September 7, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28877586/hemobilia-due-to-a-cystic-artery-pseudoaneurysm-on-ultrasound
#8
Victoria de Lara Bendahán, Encarna García DomÍnguez, Marta Rivas Rivas, Jesús García Serrano
The present paper describes a case of hemobilia in a woman with a cystic artery pseudoaneurysm. The pseudoaneurysm could be seen with ultrasound, Doppler sonography and CT angiography. In our case, Doppler sonography was the most useful technique for diagnosis, revealing the turbulent forward and backwards flow within the gallbladder, representing the focally dilated artery. This was later confirmed by CT angiography. A recent bleeding site was found on the cholecystectomy specimen.
September 7, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28877355/sonographic-evaluation-of-complications-of-extracranial-carotid-artery-interventions
#9
John D Millet, Joseph J Cavallo, Leslie M Scoutt, Gowthaman Gunabushanam
Carotid endarterectomy and carotid artery stenting are among the most common peripheral vascular procedures performed worldwide. Sonography is the initial and often only imaging modality used in the evaluation of iatrogenic carotid arterial injuries. This pictorial essay provides an overview of the clinical and sonographic findings of complications after interventions in the extracranial carotid arteries, including dissection, fluid collections, pseudoaneurysm, thrombosis, thromboembolism, restenosis, and stent deformation...
September 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28875230/b-flow-sonography-for-evaluation-of-basal-cerebral-arteries-in-newborns
#10
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/28869425/effects-of-low-oxygen-dead-space-ventilation-and-breath-holding-test-in-evaluating-cerebrovascular-reactivity-a-comparative-observation
#11
Ke-Ju Ju, Ling-Ling Zhong, Xiao-Yu Ni, Lei Xia, Liu-Jun Xue, Guan-Liang Cheng
OBJECTIVE: This study aims to explore the application prospect of low oxygen dead space ventilation (LODSV) in evaluating vasomotor reactivity (VMR) by comparison between LODSV and breath-holding test (BHT). METHODS: Outpatient or inpatient patients who underwent transcranial Doppler sonography (TCD) were enrolled into this study. These patients successively underwent BHT and LODSV. The cooperation degree, tolerance conditions and adverse reactions in patients were recorded, and VMR was calculated, compared and analyzed...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28869044/stroke-and-temporal-arteritis-a-study-of-6-cases
#12
A Lago, J I Tembl, G Fortea, L Morales, C Nieves, M Campins, F Aparici
INTRODUCTION: Though uncommon, ischaemic stroke due to temporal arteritis carries serious difficulties for diagnosis and subsequent management and requires a high level of suspicion. METHODS: We analysed a series of 6 patients with biopsy-proven temporal arteritis presenting with ischaemic stroke. We discuss clinical characteristics, difficulties of assessment, short- and long-term progression, treatment, and the usefulness of new diagnostic techniques. RESULTS: Our sample of 6 patients had a mean age of 68...
August 28, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28866260/spatiotemporal-optoacoustic-mapping-of-tumor-hemodynamics-in-a-clinically-relevant-orthotopic-rabbit-model-of-head-and-neck-cancer
#13
Laurie J Rich, Sandra Sexton, Leslie Curtin, Mukund Seshadri
The purpose of this study was to investigate the usefulness of photoacoustic imaging (PAI) for spatiotemporal mapping of tumor hemodynamics in a rabbit model of head and neck carcinoma. Shope cottontail rabbit papilloma virus associated VX2 carcinomas were established in adult male New Zealand White rabbits (n = 9) by surgical transplantation of tumor tissue in the neck. Noninvasive PAI with co-registered ultrasound (US) was performed to longitudinally monitor tumor growth, oxygen saturation (%sO2), and hemoglobin concentration (HbT)...
August 31, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28835939/accuracy-of-color-doppler-ultrasonography-and-magnetic-resonance-imaging-in-diagnosis-of-placenta-accreta-a-survey-of-82-cases
#14
Sedigheh Ayati, Leila Leila, Masoud Pezeshkirad, Farokh Seilanian Toosi, Sirous Nekooei, Mohammad Taghi Shakeri, Mansoureh Sadat Golmohammadi
BACKGROUND: Placenta adhesive disorder (PAD) is one of the most common causes of postpartum hemorrhage and peripartum hysterectomy. The main risk factors are placenta previa and prior uterine surgery such as cesarean section. Diagnosis of placenta adhesive disorders can lead to a decrease of maternal mortality and morbidities. OBJECTIVE: The purpose of this study was to compare the accuracy of color Doppler ultrasonography and magnetic resonance imaging (MRI) in the diagnosis of PADs...
April 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28835050/-implantation-of-the-irradiation-stent-system-intoportal-vein-studies-on-normal-beagles
#15
T K Li, G Y Zhu, W M Li, J Lu, C Wang, T F Pan, Y Wang, J H Guo
Objective: To assess the feasibility and safety of the irradiation stent system in portal vein on normal beagles. Methods: A portal vein irradiation stent system was composed of an Iodine-125 seeds-carrier and a conventional stent.Twenty beagle dogs were randomly assigned to receive treatment with a conventional stent (5 beagle dogs) or an irradiation stent system (15 beagle dogs in three groups received 11.1, 22.2, 33.3 MBq radioactivity, n=5 in each dose group). Follow-up methods included blood biochemical test, color Doppler sonographyand CT scan at 0, 15, 30, 60, and 120 days after implantation of irradiation stent system...
August 15, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28822902/pregnancy-outcome-is-influenced-by-luteal-area-during-diestrus-before-successful-insemination-but-not-by-milk-production-level
#16
H Berger, M Lietzau, A Tichy, K Herzog
The objective was to compare luteal area (LA), luteal blood flow (LBF), and progesterone (P4) concentration before and after artificial insemination (AI) in pregnant and open cows in the diestrus preceding insemination and during the first 21 d after insemination. A number of 119 multiparous German Holstein cows were examined using B-mode and color Doppler sonography in diestrus (15-5 d before AI) and on days 7, 14, and 21 post insemination (pi). Blood samples for determination of P4 concentration were collected at each examination...
April 14, 2017: Theriogenology
https://www.readbyqxmd.com/read/28820399/repetitive-muscle-compression-reduces-vascular-mechano-sensitivity-and-the-hyperemic-response-to-muscle-contraction
#17
A Messere, M Turturici, G Millo, S Roatta
Animal studies have shown that the rapid hyperemic response to external muscle compression undergoes inactivation upon repetitive stimulation, but this phenomenon has never been observed in humans. The aim of the present study was to determine whether 1) the vascular mechano-sensitivity underlying muscle compression-induced hyperemia is inactivated in an inter-stimulus interval (ISI)-dependent fashion upon repetitive stimulation, as suggested by animal studies, and 2) whether such inactivation also attenuates contraction-induced hyperemia...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28818013/relationship-between-doppler-findings-and-fetal-brain-apparent-diffusion-coefficient-in-early-onset-intra-uterine-growth-restriction
#18
Mehmet Serdar Kutuk, Murside Sahin, Sureyya Burcu Gorkem, Selim Doganay, Ahmet Ozturk
OBJECTIVE: The aim of the study is to assess the relationship between uteroplacental Doppler sonography findings and cerebral diffusion measured by diffusion-weighted magnetic resonance imaging (DWI) in fetuses with early-onset intrauterine growth restriction (IUGR). MATERIALS AND METHODS: The study included 54 pregnant women with fetal IUGR and 15 healthy controls (n: 15). Fetuses with IUGR were classified into four groups based on Doppler findings: group 1 (n = 12), umbilical artery (UA) pulsatility index (PI) > 95pc; group 2 (n = 11), UA PI >95 pc and middle cerebral artery PI < 5pc; group 3 (n = 21), absent end-diastolic (A-EDF) in UA; group 4 (n = 10), reversed EDF in UA...
September 4, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28808649/the-effect-of-a-single-dose-dantrolene-in-patients-with-vasospasm-following-aneurysmal-subarachnoid-hemorrhage
#19
Masih Sabouri, Mahmood Momeni, Fariborz Khorvash, Majid Rezvani, Homayon Tabesh
BACKGROUND: Cerebral vasospasm is a prolonged, occasionally severe, but reversible narrowing of the cerebral arteries that begins 3 to 5 days after the hemorrhage becomes maximal at 14 days. This study is designed to evaluate the effect of dantrolene on the reduction of vasospasm following aneurysmal subarachnoid hemorrhage (SAH). MATERIALS AND METHODS: This randomized controlled clinical trial was conducted on 32 patients with proven aneurysms in AL-Zahra hospital during 2011-2013...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28804044/real-time-ultrasound-doppler-enhances-precision-in-image-guided-approaches-to-the-cerebello-pontine-angle
#20
Davit Baghdasaryan, Marcel Albrecht, Mihr Shahnazaryan, Steffen Rosahl
OBJECTIVE: To evaluate efficacy and reliability of intraoperative Doppler sonography in localizing the transverse and sigmoid sinuses during lateral suboccipital craniotomy. METHODS: A 16-Mhz intraoperative micro-Doppler ultrasound (16Mhz, Multi-Dop pro®, Compumedics, Germany) was applied to detect the medial border of the sigmoid sinus and the inferior border of the transverse sinus in 25 patients. Micro-Doppler measurements were compared to MR- and CT-based image-guidance (Kolibri®, Brainlab, Germany)...
August 10, 2017: World Neurosurgery
keyword
keyword
84334
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"