Results 111 to 120 of about 1,678,416 (296)

Cerebral artery dilatation maintains cerebral oxygenation at extreme altitude and in acute hypoxia : an ultrasound and MRI study [PDF]

open access: yes, 2011
Transcranial Doppler is a widely used noninvasive technique for assessing cerebral artery blood flow. All previous high altitude studies assessing cerebral blood flow (CBF) in the field that have used Doppler to measure arterial blood velocity have ...
Hirani, Shashivadan P.   +61 more
core   +1 more source

Antenatal diagnosis of myometrial invasion in anterior placenta previa by transabdominal color Doppler ultra sound

open access: yesمجله كليه طب الكندي, 2011
Background: The incidence of maternal mortality in placenta previa accrete is 7%,and its preoperative diagnosis is of a great value. Objective: to evaluate the efficacy of transabdominal color Doppler ultrasound in diagnosing placenta previa accreta and
Jwan N. Sulaiman
doaj  

Diagnosing and monitoring carotid cavernous fistulas with color Doppler imaging

open access: yes, 2015
Color Doppler imaging allows simultaneous bidimensional imaging and Doppler evaluation of blood flow in orbital vessels. We report 4 cases in which color Doppler imaging was used to diagnose and monitor carotid cavernous fistulas.
Cerri, GG, Costa, VP, Molnar, LJ
core   +1 more source

Longest survivor of pulmonary atresia with ventricular septal defect without surgical intervention

open access: yes
ESC Heart Failure, Volume 12, Issue 2, Page 1499-1507, April 2025.
Sang Zhou   +5 more
wiley   +1 more source

Research progress on the use of the optical coherence tomography system for the diagnosis and treatment of central nervous system tumors

open access: yesIbrain, Volume 11, Issue 1, Page 3-18, Spring 2025.
With the advantages of high‐resolution imaging, efficient image acquisition, intraoperative real‐time detection, and radiation‐free and noninvasive characteristics, optical coherence tomography (OCT) provides accurate diagnosis and effective intraoperative guidance for the minimally invasive diagnosis and treatment of central nervous system (CNS ...
Jiuhong Li   +10 more
wiley   +1 more source

Accuracy of Ultrasonography and Color Doppler in the Diagnosis of Ovarian Masses and Their Correlation with Histopathological Findings

open access: yesPakistan Journal of Medicine and Dentistry
Background: Ovarian masses are very common gynecological concern in women so, this study is comparing the ultrasonographic and color Doppler findings of ovarian masses with their histopathological diagnosis.
Sumera Nighat   +5 more
doaj   +1 more source

A Novel Doppler Spectral Index for Differentiating Benign from Malignant Lung Tumors

open access: yes, 2012
Purpose: It has been reported that the resistance index RI and pulsatility index PI are of limited value in differentiating lung cancers from benign lesions.
吳宗儒;蕭淑銖;盧朝勇   +1 more
core   +1 more source

Obstetrics and gynecology devices designed for low‐ and middle‐income countries: A narrative review

open access: yesInternational Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 71-80, April 2025.
Abstract There are many barriers contributing to poor health outcomes for women in low‐ and middle‐income countries (LMICs), one of which is the lack of necessary medical devices. Presently, the development of various kinds of devices intended to improve women's health outcomes specifically in LMICs remains underrepresented in the literature; therefore,
Dhanalakshmi Thiyagarajan   +2 more
wiley   +1 more source

Intratesticular varicocele: evaluation using grey scale and color Doppler ultrasound

open access: yes, 2008
Intratesticular varicocele is a rare condition with a variable clinical and ultrasound presentation. The purpose of this study was to evaluate the grey scale and color Doppler appearances of intratesticular varicocele (ITV).
BELGRANO, Emanuele   +5 more
core   +1 more source

Evaluation of a novel fetal echocardiography training programme in two tertiary care obstetric Centres

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objectives Improving and maintaining high detection rates for major congenital heart disease (CHD) is a priority for successful prenatal anatomy screening programmes. The primary objective of this study was to evaluate the utility of on‐site multidimensional targeted training in fetal cardiac screening. Methods A prospective study evaluating a
Fiona Cody   +6 more
wiley   +1 more source

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