Results 1 to 10 of about 14,810,160 (259)

Intraobserver and interobserver variations in cortical transit time measurement in children with pelviureteric junction obstruction [PDF]

World Journal of Nuclear Medicine, 2021
Cortical transit time (CTT) has recently been shown to be a useful parameter in the management of children with pelviureteric junction obstruction (PUJO).
Vishesh Jain, Rakesh Kumar, Shamim Shamim, Saurabh Arora, Kalaivani Mani, Devendra Yadav, Prabudh Goel, Anjan Dhua, Sandeep Agarwala   +8 more
doaj   +4 more sources

Renal cortical transit time as a predictor for pyeloplasty in pediatric patients with unilateral hydronephrosis [PDF]

World Journal of Nuclear Medicine, 2020
Majority of patients with unilateral hydronephrosis (HN) detected on ultrasound do not require pyeloplasty. The measurement of the cortical transit time (CTT) has been demonstrated by several authors to predict the need for patients who may require ...
Stuart More, John Lazarus, Anita Brink
doaj   +4 more sources

Renal cortical transit time in the evaluation of prenatally detected presumed pelvi ureteric junction like obstruction: A systematic review [PDF]

Indian Journal of Urology, 2021
Introduction: Differentiating nonobstructive from obstructive dilatation of the kidney is a clinical dilemma in prenatally detected hydronephrosis. Many radionuclide renogram parameters have been used to differentiate obstructed from non-obstructed units,
Gyanendra Ravindra Sharma, Arabind Panda, Anshu Gyanendra Sharma   +2 more
doaj   +4 more sources

Predictive Value of Cortical Transit Time on Diuretic Renography in Determining the Need for Surgery and Evaluating the Postoperative Outcome in Ureteropelvic Junction Obstruction in Children: A Prospective Observational Study [PDF]

Journal of Indian Association of Pediatric Surgeons
Background: Ureteropelvic junction obstruction (UPJO) is the most common cause of antenatal hydronephrosis. Although the majority of them improve with time, none of the existing diagnostic modalities can accurately predict which hydronephrotic kidney is ...
Bijay Kumar Suman, Aditya Arvind Manekar, Subrat Kumar Sahoo, Kanhaiyalal Agrawal, Bikasha Bihary Tripathy, Manoj Kumar Mohanty   +5 more
doaj   +4 more sources

The influence of cortical end plate upon ultrasound transit time spectroscopy estimated bone assessment

Journal of Radiation Research and Applied Sciences
Quantitative ultrasound (QUS) is considered a reliable tool for routine assessment of bone. However, none of the QUS parameters has a direct measure of bone quantity or quality.
Saeed Mueed Al-Qahtani
doaj   +4 more sources

Parametric color-coding-derived microvascular transit time may predict infarction and reveals microcirculatory benefits of Tenecteplase in acute ischemic stroke [PDF]

Frontiers in Neurology
BackgroundDespite successful macrovascular recanalization a subset of patients with a large vessel occlusion (LVO) have persisting microvascular occlusion, known as the” no-reflow-phenomenon.” In this study, we evaluated whether microvascular transit ...
Ludwig Singer, Jeannette Becker, Maximilian Sprügel, Niklas Keller, Alexander Sekita, Jochen Sembill, Hannes Lücking, Sherif A. Mohamed, Stefan Schwab, Stefan T. Gerner, Arnd Doerfler, Tobias Engelhorn   +11 more
doaj   +2 more sources

Intraoperative Monitoring Cerebral Blood Flow During the Treatment of Brain Arteriovenous Malformations in Hybrid Operating Room by Laser Speckle Contrast Imaging

Frontiers in Surgery, 2022
BackgroundHemodynamic changes caused by hybrid surgery for brain arteriovenous malformations (bAVM) are usually related to long-term lesions from “blood stealing”.
Sicai Tao, Tingbao Zhang, Keyao Zhou, Xiaohu Liu, Yu Feng, Wenyuan Zhao, Jincao Chen   +6 more
doaj   +1 more source

Arterial spin-labeling perfusion MR images with dual postlabeling delay reveals hemodynamic changes in dural arteriovenous fistulas following endovascular surgery

Interdisciplinary Neurosurgery, 2020
Background: Previous studies have demonstrated that, in patients with dural arteriovenous fistulas (DAVF), magnetic resonance perfusion images with arterial spin labeling (ASL) with a conventional single postlabeling delay (PLD) of 1.5 s, can be used to ...
So Tokunaga, Takato Morioka, Noritoshi Shirozu, Yuichiro Tsurusaki, Shoji Arihiro, Takafumi Shimogawa, Masahiro Mizoguchi, Sei Haga   +7 more
doaj   +1 more source

Quantifying cerebral blood arrival times using hypoxia-mediated arterial BOLD contrast

NeuroImage, 2022
Cerebral blood arrival and tissue transit times are sensitive measures of the efficiency of tissue perfusion and can provide clinically meaningful information on collateral blood flow status.
Alex A. Bhogal, Ece Su Sayin, Julien Poublanc, James Duffin, Joseph A. Fisher, Olivia Sobcyzk, David J. Mikulis   +6 more
doaj   +1 more source

Laminar perfusion imaging with zoomed arterial spin labeling at 7 Tesla

NeuroImage, 2021
Laminar fMRI based on BOLD and CBV contrast at ultrahigh magnetic fields has been applied for studying the dynamics of mesoscopic brain networks. However, the quantitative interpretations of BOLD/CBV fMRI results are confounded by different baseline ...
Xingfeng Shao, Fanhua Guo, Qinyang Shou, Kai Wang, Kay Jann, Lirong Yan, Arthur W. Toga, Peng Zhang, Danny J.J. Wang   +8 more
doaj   +1 more source