Results 71 to 80 of about 429,194 (230)

Correlation of perfusion MRI and 18F-FDG PET imaging biomarkers for monitoring regorafenib therapy in experimental colon carcinomas with immunohistochemical validation. [PDF]

open access: yesPLoS ONE, 2015
OBJECTIVES:To investigate a multimodal, multiparametric perfusion MRI / 18F-fluoro-deoxyglucose-(18F-FDG)-PET imaging protocol for monitoring regorafenib therapy effects on experimental colorectal adenocarcinomas in rats with immunohistochemical ...
Ralf S Eschbach   +15 more
doaj   +1 more source

A two‐stage model for precise identification and Gleason grading of clinically significant prostate cancer: a hybrid approach

open access: yesJournal of Medical Radiation Sciences, Volume 72, Issue 1, Page 93-105, March 2025.
This study developed a two‐stage model using radiomics‐based multiparametric MRI and clinical indicators to help identify and grade clinically significant prostate cancer. The model showed promising levels of diagnostic accuracy and predictive performance.
Yuyan Zou   +10 more
wiley   +1 more source

Assessment of renal insufficiency in patients with renal artery stenosis by multiparametric magnetic resonance imaging

open access: yesRenal Failure
Objectives To evaluate the function of kidneys with renal artery stenosis using multiparametric magnetic resonance imaging, assess the diagnostic efficacy of multiparametric magnetic resonance imaging for single kidney dysfunction.Materials and methods ...
Long Zhao   +7 more
doaj   +1 more source

Retrohepatic Vena Cava Encirclement, as Surrogate of Extensive Liver Manipulation During Caval Sparing Hepatectomy, Is a Risk Factor for Tumor Recurrence After Liver Transplantation for Hepatocellular Carcinoma

open access: yesJournal of Surgical Oncology, EarlyView.
ABSTRACT Introduction In liver transplantation (LT) with a caval sparing (CS) approach, the presence of complete encirclement of inferior vena cava (IVC‐E) by hypertrophic segment 1 increases the technical complexity of hepatectomy. Thus, in LT for hepatocellular carcinoma (HCC), It may be suspected that the resulting greater liver manipulation and ...
Riccardo Pravisani   +9 more
wiley   +1 more source

Incomplete Spoiling Correction for 3D T1$$ {T}_1 $$ Mapping

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Assess the impact of incomplete spoiling and spatial saturation on T1$$ {T}_1 $$ mapping using the variable flip angle (VFA) spoiled gradient recalled echo sequence (SPGR). Develop a correction for incomplete spoiling that results in an accurate estimate of T1$$ {T}_1 $$, essential for quantitative MRI applications.
Gabriela Belsley   +3 more
wiley   +1 more source

The Impact of Water Exchange on Estimates of Myocardial Blood Flow and Extracellular Volume Fraction Using Dynamic Contrast‐Enhanced MRI in Patients Treated for Severe Aortic Stenosis

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To investigate the impact of intra/extracellular water exchange (WX) on quantitative dynamic contrast‐enhanced (DCE) MRI in patients with severe aortic stenosis (AS). The aims were to compare low‐dose (WX insensitive) and high‐dose (WX sensitive) DCE‐MRI measurements, and to compare data acquired before and after aortic valve ...
Alex Makins   +5 more
wiley   +1 more source

Hypoxia-specific MRI contrast agents

open access: yes, 2018
Introduction: Hypoxia or decreased availability of oxygen in tumours is of significant interest in oncology as it is known to increase radiotherapy and chemotherapy resistance, and promote tumour progression [1, 2]. For better prognosis of solid tumours,
Wijesekera, Nadeeja (S32280)   +3 more
core  

Deep Learning for Fully-Automated Localization and Segmentation of Rectal Cancer on Multiparametric MR

open access: yesScientific Reports, 2017
Multiparametric Magnetic Resonance Imaging (MRI) can provide detailed information of the physical characteristics of rectum tumours. Several investigations suggest that volumetric analyses on anatomical and functional MRI contain clinically valuable ...
Stefano Trebeschi   +8 more
doaj   +1 more source

Quantitative MRI Assessment of Gyrification and Brain Volume in Congenital Cytomegalovirus Fetuses and Postnatal Outcome

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective Quantitative assessment of the impact of cytomegalovirus (CMV) infection on fetal brain development beyond conventional imaging remains limited. We aimed to quantify cortical gyrification and brain volumes in CMV‐exposed fetuses, compare groups with varying severities of conventional MRI findings, and evaluate postnatal outcomes ...
Or R. Sadan   +14 more
wiley   +1 more source

Multiparametric MRI assessment of cervical carcinoma

open access: yes, 2022
Diffusion-weighted imaging (DWI) serves as a pillar of magnetic resonance imaging (MRI) diagnosis and evaluation which permits detection of subtle changes at the cellular level, particularly aids in oncological imaging.
Wang, Mandi, 王曼頔
core  

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