Articles with "non contrast" as a keyword



Deep learning derived automated ASPECTS on non‐contrast CT scans of acute ischemic stroke patients

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Published in 2022 at "Human Brain Mapping"

DOI: 10.1002/hbm.25845

Abstract: Ischemic stroke is the most common type of stroke, ranked as the second leading cause of death worldwide. The Alberta Stroke Program Early CT Score (ASPECTS) is considered as a systematic method of assessing ischemic… read more here.

Keywords: automated aspects; contrast scans; non contrast; dataset ... See more keywords

Hippocampus Segmentation on non-Contrast CT using Deep Learning.

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Published in 2020 at "Medical physics"

DOI: 10.1002/mp.14098

Abstract: Accurate segmentation of the hippocampus for hippocampal avoidance whole brain radiotherapy currently requires high resolution MRI in addition to neuroanatomic expertise for manual segmentation. Removing the need for MR images to identify the hippocampus would… read more here.

Keywords: segmentation; hippocampus; deep learning; non contrast ... See more keywords

Deep Learning-Based 3D MRI Contrast-Enhanced Synthesis From A 2D Non-contrast T2Flair Sequence Deep Learning, MR images Synthesis.

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Published in 2022 at "Medical physics"

DOI: 10.1002/mp.15636

Abstract: PURPOSE Gadolinium-based contrast agents (GBCAs) have been successfully applied in magnetic resonance (MR) imaging to facilitate better lesion visualization. However, gadolinium deposition in the human brain raised widespread concerns recently. On the other hand, although… read more here.

Keywords: contrast; synthesis; non contrast; contrast t2flair ... See more keywords

Label‐efficient sequential model‐based weakly supervised intracranial hemorrhage segmentation in low‐data non‐contrast CT imaging

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Published in 2025 at "Medical Physics"

DOI: 10.1002/mp.17689

Abstract: In clinical settings, intracranial hemorrhages (ICH) are routinely diagnosed using non‐contrast CT (NCCT) in emergency stroke imaging for severity assessment. However, compared to magnetic resonance imaging (MRI), ICH shows low contrast and poor signal‐to‐noise ratio… read more here.

Keywords: efficient sequential; segmentation; sequential model; contrast ... See more keywords

Highly accelerated non‐contrast‐enhanced time‐resolved 4D MRA using stack‐of‐stars golden‐angle radial acquisition with a self‐calibrated low‐rank subspace reconstruction

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Published in 2024 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.30304

Abstract: To develop a highly accelerated non‐contrast‐enhanced 4D‐MRA technique by combining stack‐of‐stars golden‐angle radial acquisition with a modified self‐calibrated low‐rank subspace reconstruction. read more here.

Keywords: stars golden; accelerated non; highly accelerated; contrast enhanced ... See more keywords

Assessing anemia in stroke patients through virtual non-contrast imaging with photon-counting detector CT: validation on supra-aortic vessel CT-Angiography

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Published in 2025 at "Neuroradiology"

DOI: 10.1007/s00234-025-03620-2

Abstract: Anemia is a common comorbidity in stroke patients, traditionally detected via blood tests. This study evaluates the feasibility of using virtual non-contrast (VNC) imaging from photon counting detector-CT (PCD-CT) angiography to detect anemia and identifies… read more here.

Keywords: stroke patients; imaging photon; angiography; vnc ... See more keywords
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Clues to vascular disorders at non-contrast CT of the chest, abdomen, and pelvis

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Published in 2017 at "Abdominal Radiology"

DOI: 10.1007/s00261-017-1113-8

Abstract: Non-contrast chest CT scans are commonly performed while CT scans of the abdomen and pelvis are performed in a select subset of patients; those with limited renal function, an allergy to iodinated contrast, in the… read more here.

Keywords: vascular disorders; contrast; abdomen pelvis; non contrast ... See more keywords

Non-contrast MR lymphography of the lymphatic system of the liver

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Published in 2019 at "European Radiology"

DOI: 10.1007/s00330-019-06151-6

Abstract: AbstractThis review shows the images obtained with non-contrast MR lymphography in different pathologic conditions affecting the liver. Non-contrast MR lymphography is obtained with a free-breathing 3D high spatial resolution fast-recovery fast spin-echo sequence similar to… read more here.

Keywords: anatomy; liver; physiology; non contrast ... See more keywords

A radiomic nomogram for prediction of major adverse cardiac events in ST-segment elevation myocardial infarction

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Published in 2020 at "European Radiology"

DOI: 10.1007/s00330-020-07176-y

Abstract: Objectives This study was conducted to establish and validate a non-contrast T1 map–based radiomic nomogram for predicting major adverse cardiac events (MACEs) in patients with acute ST-segment elevation myocardial infarction (STEMI) undergoing percutaneous coronary intervention… read more here.

Keywords: acute stemi; segment; non contrast; prediction ... See more keywords

Comparison of various reconstructions derived from dual-energy CT immediately after endovascular treatment of acute ischemic stroke in predicting hemorrhage

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Published in 2021 at "European Radiology"

DOI: 10.1007/s00330-020-07574-2

Abstract: Predicting 24-h hemorrhage immediately after endovascular treatment (EVT) of ischemic stroke is important but difficult for clinicians. We thus aimed to identify better image markers in predicting hemorrhage from different reconstructions derived from dual-energy CT.… read more here.

Keywords: ischemic stroke; hemorrhage; non contrast; parenchymal hyperdensities ... See more keywords

Non-contrast-enhanced multiparametric cardiac magnetic resonance reveals coronary microvascular functional and structural obstruction after percutaneous coronary intervention

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Published in 2025 at "European Radiology"

DOI: 10.1007/s00330-025-11496-2

Abstract: Coronary microvascular functional and structural obstructions (CMVO) after percutaneous coronary intervention (PCI) are a major cause of poor clinical outcomes in patients with acute coronary syndrome. This study aimed to noninvasively diagnose the presence of… read more here.

Keywords: cmvo; contrast enhanced; enhanced multiparametric; non contrast ... See more keywords