Results 21 to 30 of about 263,898 (315)

Cerebral misery perfusion diagnosed using hypercapnic blood-oxygenation-level-dependent contrast functional magnetic resonance imaging: a case report [PDF]

, 2010
Introduction Cerebral misery perfusion represents a failure of cerebral autoregulation. It is animportant differential diagnosis in post-stroke patients presenting with collapses in the presence of haemodynamically significant cerebrovascular stenosis ...
Adam L Gordon, Gordon, Adam L., D'Souza Olympio, Goode, Stephen, Munshi, Sunil K., Munshi Sunil K, Sunil K Munshi, Olympio D'Souza, Auer Dorothee P, Stephen Goode, D'Souza, Olympio, Gordon Adam L, Dorothee P Auer, Goode Stephen, Auer, Dorothee P.   +14 more
core   +1 more source

The clinical application of one-stop examination with 640-slice volume CT for Nutcracker syndrome. [PDF]

PLoS ONE, 2013
BACKGROUND: To investigate the relationship between the level of left renal vein (LRV) compression and changes in the perfusion of the left kidney in patients with nutcracker syndrome (NCS) by one-stop whole-organ perfusion imaging of bilateral kidneys ...
Jianguo Zhong, Jianhua Yuan, Vincent Chong, Zhen Wang, Jian Xu, Zhongxiang Ding   +5 more
doaj   +1 more source

Quantitative assessment of ventilation-perfusion relationships with gallium-68 positron emission tomography/computed tomography imaging in lung cancer patients

Physics and Imaging in Radiation Oncology, 2022
Pulmonary functional imaging has demonstrated potential to improve thoracic radiotherapy. The purpose of this study was twofold: 1) to quantify ventilation/perfusion relationships in lung cancer patients using a new functional imaging approach, gallium ...
Zhuorui Li, Pierre-Yves Le Roux, Jason Callahan, Nicholas Hardcastle, Michael S. Hofman, Shankar Siva, Tokihiro Yamamoto   +6 more
doaj   +1 more source

CT Perfusion Imaging: A Valuable and Feasible Resolution of Pulmonary Nodules [PDF]

Advanced Ultrasound in Diagnosis and Therapy, 2019
CT perfusion imaging, a non-invasive functional imaging method, can accurately reflect the hemodynamic changes of pulmonary nodules. It plays an important role in the diagnosis, differential diagnosis, treatment effect assessment and prognosis prediction.
Mai-lin Chen, MD, Ying-shi Sun, MD
doaj   +1 more source

Development of a Routinely Applicable Imaging Protocol for Fast and Precise Middle Cerebral Artery Occlusion Assessment and Perfusion Deficit Measure in an Ovine Stroke Model: A Case Study

Frontiers in Neurology, 2019
Temporary middle cerebral artery occlusion (MCAO) in sheep allows modeling of acute large vessel occlusion stroke and subsequent vessel recanalization.
Andrea Maria Herrmann, Andrea Maria Herrmann, Giorgio Franco Maria Cattaneo, Sebastian Alexander Eiden, Manuela Wieser, Elias Kellner, Christoph Maurer, Jörg Haberstroh, Christoph Mülling, Wolf-Dirk Niesen, Horst Urbach, Johannes Boltze, Johannes Boltze, Stephan Meckel, Mukesch Johannes Shah   +14 more
doaj   +1 more source

Perfusion of surgical cavity wall enhancement in early post-treatment MR imaging may stratify the time-to-progression in glioblastoma. [PDF]

PLoS ONE, 2017
To determine if perfusion in surgical cavity wall enhancement (SCWE) obtained in early post-treatment MR imaging can stratify time-to-progression (TTP) in glioblastoma.This study enrolled 60 glioblastoma patients with more than 5-mm-thick SCWEs as ...
Ji Eun Park, Kyoung Hwa Ryu, Ho Sung Kim, Hyo Won Kim, Woo Hyun Shim, Seung Chai Jung, Choong Gon Choi, Sang Joon Kim, Jeong Hoon Kim   +8 more
doaj   +1 more source

A Multimodality Myocardial Perfusion Phantom:Initial Quantitative Imaging Results [PDF]

, 2022
This proof-of-concept study explores the multimodal application of a dedicated cardiac flow phantom for ground truth contrast measurements in dynamic myocardial perfusion imaging with CT, PET/CT, and MRI.
Frank F. J. Simonis, Greuter, Marcel J. W., Slart, Riemer H. J. A., Liefers, H. Remco, Jan van Es, Simonis, Frank F. J., Kamphuis, Marije E., Slump, Cornelis H., Simonis, Frank F.J., Kuipers, Henny, Henny Kuipers, Marcel J. W. Greuter, Cornelis H. Slump, van Es, Jan, Marije E. Kamphuis, H. Remco Liefers, Greuter, Marcel J.W.; id_orcid, Riemer H. J. A. Slart, Slart, Riemer H.J.A., Greuter, Marcel J.W.   +19 more
core   +1 more source

Quantification of Skeletal Muscle Perfusion in Peripheral Artery Disease Using 18F‐Sodium Fluoride Positron Emission Tomography Imaging

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Perfusion deficits contribute to symptom severity, morbidity, and death in peripheral artery disease (PAD); however, no standard method for quantifying absolute measures of skeletal muscle perfusion exists.
Ting‐Heng Chou, Mahboubeh Nabavinia, Nguyen K. Tram, Eleanor T. Rimmerman, Surina Patel, Kumudha Narayana Musini, Susan Natalie Eisert, Tatiana Wolfe, Molly K. Wynveen, Yuichi Matsuzaki, Takahiro Kitsuka, Ryuma Iwaki, Sarah A. Janse, Adam J. Bobbey, Christopher K. Breuer, Laurie Goodchild, Raphael Malbrue, Toshiharu Shinoka, Said A. Atway, Michael R. Go, Mitchel R. Stacy   +20 more
doaj   +1 more source

Evaluation of 2D Imaging Schemes for Pulsed Arterial Spin Labeling of the Human Kidney Cortex

Diagnostics, 2018
A number of imaging readout schemes are proposed for renal arterial spin labeling (ASL) to quantify kidney cortex perfusion, including gradient echo-based methods of balanced fast field echo (bFFE) and gradient-echo echo-planar imaging (GE-EPI), or spin ...
Charlotte E. Buchanan, Eleanor F. Cox, Susan T. Francis   +2 more
doaj   +1 more source

Experience with Transcranial Electrical Stimulation in the Assessment of the Microvascular Bed by Contrast-Free Magnetic Resonance Perfusion Imaging in Patients with Chronic Cerebral Ischemia

Вестник рентгенологии и радиологии, 2022
Objective: to define the role of transcranial electrical stimulation in the assessment of the microvascular bed by contrast-free magnetic resonance (MR) perfusion imaging in patients with chronic cerebral ischemia. Material and methods. Examinations were
Е. S. Chukhontseva, Т. G. Morozova, А. V. Borsukov   +2 more
doaj   +1 more source