Results 1 to 10 of about 26,775 (234)

MRI-monitored intra-shunt local agent delivery of motexafin gadolinium: towards improving long-term patency of TIPS. [PDF]

PLoS ONE, 2013
Transjugular intrahepatic portosystemic shunt (TIPS) has become an important and effective interventional procedure in treatment of the complications related to portal hypertension.
Han Wang, Feng Zhang, Yanfeng Meng, Tong Zhang, Patrick Willis, Thomas Le, Stephanie Soriano, Erik Ray, Karim Valji, Guixiang Zhang, Xiaoming Yang   +10 more
doaj   +1 more source

USE OF MAGNETIC RESONANCE ANGIOGRAPHY FOR DIAGNOSIS OF PORTOSYSTEMIC SHUNTS IN DOGS [PDF]

Veterinary Radiology & Ultrasound, 1999
A prospective study was conducted to determine the sensitivity and specificity of diagnosis of portosystemic shunts (PSS) and the accuracy of anatomically locating single congenital PSS in dogs using magnetic resonance angiography (MRA). MRA was performed on 10 normal dogs and 23 dogs with PSS.
B, Seguin, K M, Tobias, P R, Gavin, R L, Tucker   +3 more
openaire   +2 more sources

The role of perfusion and diffusion MRI in the assessment of patients affected by probable idiopathic normal pressure hydrocephalus. A cohort-prospective preliminary study

Fluids and Barriers of the CNS, 2017
Background Invasive tests measuring resistance to cerebral spinal fluid (CSF) outflow and the effect of temporary drainage of CSF are used to select candidates affected by idiopathic normal pressure hydrocephalus (iNPH) for shunt surgery.
Francesco Tuniz, Maria Caterina Vescovi, Daniele Bagatto, Daniela Drigo, Maria Cristina De Colle, Marta Maieron, Miran Skrap   +6 more
doaj   +1 more source

Maladjustment of pressure settings of a programmable shunt valve by electromagnetic door locks in Forensic Psychiatry – a case report

European Psychiatry, 2022
Introduction Maladjustments and failures of programmable ventriculo-peritoneal shunts have been reported in patients encountering powerful electromagnetic fields, e. g. MRI.
C. Licht, R. Weisser, C. Schloegl
doaj   +1 more source

Fully-Integrated Solid Shunt Planar Transformer for LLC Resonant Converters

IEEE Open Journal of Power Electronics, 2022
A new topology for achieving high leakage inductance in inserted-shunt integrated magnetic planar transformers is proposed. In the proposed topology, two one-segment shunts are placed across the planar E-core air gap and between the primary and secondary
Sajad A. Ansari, Jonathan N. Davidson, Martin P. Foster   +2 more
doaj   +1 more source

A rare Abernethy Ib malformation was initially misdiagnosed as chronic portal vein thrombosis in a 27-year-old female

Radiology Case Reports, 2022
Abernethy malformation or congenital portosystemic shunt is a rare congenital vascular malformation and anomaly of the splanchnic venous system defined by diverting portal blood away from the liver.
Mehrdad kayedi, MD, Behnam Kian, MD, Arash Teimouri, MD   +2 more
doaj   +1 more source

A Magnetic Shunt Based Magnetic Structure for Coupled Inductor Filters

IET Power Electronics
ABSTRACT This article presents a magnetic structure for coupled inductor filters that simplifies the adjustment of the coupling factor between the windings and the target mutual and self‐inductances to achieve a zero‐ripple input current. The proposed structure utilizes a low‐permeability ferrite polymer in the core gap.
Christian Buzzio, Germán Gustavo Oggier, Roberto Francisco Coelho, Denizar Cruz Martins   +3 more
openaire   +2 more sources

Quantification of cerebral circulation and shunt volume in a tentorial dural arteriovenous fistula using two-dimensional phase-contrast magnetic resonance imaging

Acta Radiologica Short Reports, 2014
Venous hypertension is closely related to poor outcome of a dural arteriovenous fistula (DAVF). However, no direct measurements have been made of the shunt flow and impaired venous drainage that are suggestive of venous hypertension. We present a case of
Sung Won Youn, Ho Kyun Kim, Hui Joong Lee, Jongmin Lee   +3 more
doaj   +1 more source

Reproducing Patient-Specific Hemodynamics in the Blalock–Taussig Circulation Using a Flexible Multi-Domain Simulation Framework: Applications for Optimal Shunt Design

Frontiers in Pediatrics, 2017
For babies born with hypoplastic left heart syndrome, several open-heart surgeries are required. During Stage I, a Norwood procedure is performed to construct an appropriate circulation to both the systemic and the pulmonary arteries.
Christopher J. Arthurs, Pradyumn Agarwal, Anna V. John, Adam L. Dorfman, Ronald G. Grifka, C. Alberto Figueroa, C. Alberto Figueroa   +6 more
doaj   +1 more source

Interventional Cardiovascular Magnetic Resonance Imaging (iCMR) in an Adolescent with Pulmonary Hypertension

Medicina, 2020
The interventional cardiac magnetic resonance imaging (iCMR) catheterization procedure is feasible and safe for children and adults with pulmonary hypertension and congenital heart defects (CHD).
Surendranath R. Veeram Reddy, Yousef Arar, Tarique Hussain, Gerald Greil, Luis Zabala, Bibhuti B. Das   +5 more
doaj   +1 more source