keyword
https://read.qxmd.com/read/38522623/fully-automated-contrast-selection-of-joint-bright-and-black-blood-late-gadolinium-enhancement-imaging-for-robust-myocardial-scar-assessment
#1
JOURNAL ARTICLE
Victor de Villedon de Naide, Jean-David Maes, Manuel Villegas-Martinez, Indra Ribal, Aurélien Maillot, Valéry Ozenne, Géraldine Montier, Thibaut Boullé, Soumaya Sridi, Pauline Gut, Thomas Küstner, Matthias Stuber, Hubert Cochet, Aurélien Bustin
PURPOSE: Joint bright- and black-blood MRI techniques provide improved scar localization and contrast. Black-blood contrast is obtained after the visual selection of an optimal inversion time (TI) which often results in uncertainties, inter- and intra-observer variability and increased workload. In this work, we propose an artificial intelligence-based algorithm to enable fully automated TI selection and simplify myocardial scar imaging. METHODS: The proposed algorithm first localizes the left ventricle using a U-Net architecture...
March 22, 2024: Magnetic Resonance Imaging
https://read.qxmd.com/read/38519109/dwi-scrolling-artery-sign-for-the-diagnosis-of-giant-cell-arteritis-a-pattern-recognition-approach
#2
JOURNAL ARTICLE
Luca Seitz, Susana Bucher, Lukas Bütikofer, Britta Maurer, Harald M Bonel, Fabian Lötscher, Pascal Seitz
OBJECTIVES: To investigate the diagnostic accuracy of a pattern recognition approach for the evaluation of MRI scans of the head with diffusion-weighted imaging (DWI) in suspected giant cell arteritis (GCA). METHODS: Retrospectively, 156 patients with suspected GCA were included. The 'DWI-Scrolling-Artery-Sign' (DSAS) was defined as hyperintense DWI signals in the cranial subcutaneous tissue that gives the impression of a blood vessel when scrolling through a stack of images...
March 22, 2024: RMD Open
https://read.qxmd.com/read/38517610/deep-learning-based-3d-cerebrovascular-segmentation-workflow-on-bright-and-black-blood-sequences-magnetic-resonance-angiography
#3
JOURNAL ARTICLE
Langtao Zhou, Huiting Wu, Guanghua Luo, Hong Zhou
BACKGROUND: Cerebrovascular diseases have emerged as significant threats to human life and health. Effectively segmenting brain blood vessels has become a crucial scientific challenge. We aimed to develop a fully automated deep learning workflow that achieves accurate 3D segmentation of cerebral blood vessels by incorporating classic convolutional neural networks (CNNs) and transformer models. METHODS: We used a public cerebrovascular segmentation dataset (CSD) containing 45 volumes of 1...
March 22, 2024: Insights Into Imaging
https://read.qxmd.com/read/38505385/switch-on-near-infrared-emission-in-albumin-behind-dark-fabric-toward-application-in-forensic-latent-bloodstain-detection
#4
JOURNAL ARTICLE
Matthew A Saucier, Nicholas A Kruse, Timothy A Lewis, Nathan I Hammer, Jared H Delcamp
Latent bloodstain detection remains imperative for crime scene investigators. Widely used luminol offers high sensitivity to human blood, but can produce untrustworthy results from a bleach-cleaned crime scene or in a room not dark enough. Furthermore, dark pigments impede imaging bloodstains covered by dark materials with previously reported bloodstain detection agents. A novel on/off human albumin-sensing dye (SO3C7) is reported herein with a longer emission wavelength (942 nm) than previous materials that allows imaging behind ∼5 mm of black fabric...
March 14, 2024: RSC Advances
https://read.qxmd.com/read/38458551/fast-imaging-of-lenticulostriate-arteries-by-high-resolution-black-blood-t1-weighted-imaging-with-variable-flip-angles-and-acceleration-by-compressed-sensitivity-encoding
#5
JOURNAL ARTICLE
Yukun Zang, Jiajun Cao, Chen Qiao, Bingbing Gao, Wei Du, Liangjie Lin, Na Liu, Qingwei Song, Yanwei Miao
OBJECTIVE: We investigated the feasibility of using compressed sensitivity encoding (CS-SENSE) to accelerate high-resolution black-blood T1-weighted imaging with variable flip angles (T1WI-VFA) for efficient visualization and characterization of lenticulostriate arteries (LSAs) on a 3.0 T MR scanner. MATERIALS AND METHODS: Twenty-five healthy volunteers and 18 patients with the cerebrovascular disease were prospectively enrolled. Healthy volunteers underwent T1WI-VFA sequences with different acceleration factors (AFs), including conventional sensitivity encoding (SENSE) AF = 3 and CS-SENSE AF = 3, 4, 5, and 6 (SENSE3, CS3, CS4, CS5, CS6, respectively) at 3 Tesla MRI scanner...
March 6, 2024: Magnetic Resonance Imaging
https://read.qxmd.com/read/38434197/case-report-susac-syndrome-two-ends-of-the-spectrum-single-center-case-reports-and-review-of-the-literature
#6
Martina Cviková, Jakub Štefela, Vít Všianský, Michal Dufek, Irena Doležalová, Jan Vinklárek, Roman Herzig, Markéta Zemanová, Vladimír Červeňák, Jaroslav Brichta, Veronika Bárková, David Kouřil, Petr Aulický, Pavel Filip, Viktor Weiss
Susac syndrome is a rare and enigmatic complex neurological disorder primarily affecting small blood vessels in the brain, retina, and inner ear. Diagnosing Susac syndrome may be extremely challenging not only due to its rarity, but also due to the variability of its clinical presentation. This paper describes two vastly different cases-one with mild symptoms and good response to therapy, the other with severe, complicated course, relapses and long-term sequelae despite multiple therapeutic interventions. Building upon the available guidelines, we highlight the utility of black blood MRI in this disease and provide a comprehensive review of available clinical experience in clinical presentation, diagnosis and therapy of this disease...
2024: Frontiers in Neurology
https://read.qxmd.com/read/38429843/deep-learning-based-metastasis-detection-in-patients-with-lung-cancer-to-enhance-reproducibility-and-reduce-workload-in-brain-metastasis-screening-with-mri-a-multi-center-study
#7
JOURNAL ARTICLE
Yae Won Park, Ji Eun Park, Sung Soo Ahn, Kyunghwa Han, NakYoung Kim, Joo Young Oh, Da Hyun Lee, So Yeon Won, Ilah Shin, Ho Sung Kim, Seung-Koo Lee
OBJECTIVES: To assess whether a deep learning-based system (DLS) with black-blood imaging for brain metastasis (BM) improves the diagnostic workflow in a multi-center setting. MATERIALS AND METHODS: In this retrospective study, a DLS was developed in 101 patients and validated on 264 consecutive patients (with lung cancer) having newly developed BM from two tertiary university hospitals, which performed black-blood imaging between January 2020 and April 2021. Four neuroradiologists independently evaluated BM either with segmented masks and BM counts provided (with DLS) or not provided (without DLS) on a clinical trial imaging management system (CTIMS)...
March 1, 2024: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://read.qxmd.com/read/38419118/preoperative-multimodal-ultrasonic-imaging-in-a-case-of-peutz-jeghers-syndrome-complicated-by-atypical-lobular-endocervical-glandular-hyperplasia-a-case-report-and-literature-review
#8
JOURNAL ARTICLE
Liwen Yang, Duan Duan, Ying Xiong, Tianjiao Liu, Lijun Zhao, Fan Lai, Dingxian Gu, Liuying Zhou
BACKGROUND: Peutz-Jeghers syndrome (PJS), an autosomal dominant multiple cancerous disorder, is clinically characterized by mucocutaneous macules and multiple gastrointestinal hamartomatous polyps. Gastric-type endocervical adenocarcinoma (G-EAC), a special subtype of cervical adenocarcinoma with non-specific symptoms and signs, is known to occur in approximately 11% of female patients with PJS. CASE PRESENTATION: Here, we report a case of PJS in a 24-year-old female with multiple mucocutaneous black macules who complained of vaginal discharge and menorrhagia...
February 28, 2024: Hereditary Cancer in Clinical Practice
https://read.qxmd.com/read/38412543/walking-and-social-reminiscence-in-gentrifying-neighborhoods-feasibility-and-impact-on-cognitive-physical-and-mental-health-among-older-black-adults-in-the-sharp-study
#9
JOURNAL ARTICLE
Raina Croff, Sophia Aron, Anne Wachana, Patrice Fuller, Nora Mattek, Juell Towns, Jeffrey Kaye
BACKGROUND AND OBJECTIVES: Two exploratory 6-month pilots of triadic walking with culturally celebratory social reminiscence in gentrifying neighborhoods tested feasibility and health impact among normal and mildly cognitively impaired (MCI) older Black adults. RESEARCH DESIGN AND METHODS: Fourteen triads walked 1-mile 3x/week, using a navigational application with image-based reminiscence prompts. Focus groups evaluated perceived health impact and experience. Primary outcome measures were program evaluations (feasibility), pre-post self-report health, Montreal Cognitive Assessment, blood pressure, and weight...
February 27, 2024: Gerontologist
https://read.qxmd.com/read/38363407/expanded-experience-with-cardiovascular-black-blood-cinematic-rendering
#10
JOURNAL ARTICLE
Claire Brookmeyer, Linda C Chu, Steven P Rowe, Elliot K Fishman
Black blood cinematic rendering (BBCR) is a newly described preset for cinematic rendering, which creates photorealistic displays from volumetric data sets with the contrast-enhanced blood pool displayed as dark and transparent. That set of features potentially provides for enhanced visualization of endomyocardial and intraluminal pathology, as well as cardiac devices. The similarity of the images to black-blood magnetic resonance imaging (MRI) may allow for expansion of the evaluation of certain types of pathology into patient populations unable to undergo MRI...
February 16, 2024: Emergency Radiology
https://read.qxmd.com/read/38344345/behcet-disease-a-case-report-on-the-utilization-of-t1-weighted-black-blood-fat-suppressed-sequences-for-the-detection-of-venous-vasculitis
#11
Daniel Weiss, Elisabeth Appel, Bernd Turowski
T1-weighted black blood FS sequences may provide a useful addition to imaging protocols in detection of subtle changes in venous vasculitides and, therefore, may have an impact on treatment options.
February 2024: Clinical Case Reports
https://read.qxmd.com/read/38331052/flow-independent-black-blood-imaging-with-a-large-fov-from-the-neck-to-the-aortic-arch-a-feasibility-study-at-3-tesla
#12
JOURNAL ARTICLE
Yoshihiko Tachikawa, Yasunori Maki, Kento Ikeda, Hikaru Yoshikai, Nobuyuki Toyonari, Hiroshi Hamano, Naoya Chiwata, Kenji Suzuyama, Yukihiko Takahashi
PURPOSE: To investigate the feasibility of obtaining black-blood imaging with a large FOV from the neck to the aortic arch at 3 T using a newly modified Relaxation-Enhanced Angiography without Contrast and Triggering for Black-Blood Imaging (REACT-BB). MATERIALS AND METHODS: REACT-BB provides black-blood images by adjusting the inversion time (TI) in REACT to the null point of blood. The optimal TI for REACT-BB was investigated in 10 healthy volunteers with TI varied from 200 ms to 1400 ms...
February 6, 2024: Magnetic Resonance Imaging
https://read.qxmd.com/read/38309377/hybrid-dynamic-bright-and-black-blood-angiography-by-non-contrast-enhanced-vessel-selective-saturation-angiography
#13
JOURNAL ARTICLE
Wiebke Entelmann, Thomas Lindner, Marie Teresa Nawka, Jens Fiehler, Olav Jansen, Monika Huhndorf
The integrity of vessel walls and changes in blood flow are involved in many diseases, and information about these anatomical and physiological conditions is important for a diagnosis. There are several different angiography methods that can be used to generate images for diagnostic purposes, but often using different imaging techniques and MR sequences. The purpose of this study was to develop a method that allows time-resolved, vessel-selective simultaneous bright and black blood imaging by vesselselective blood saturation...
February 1, 2024: Magnetic Resonance Imaging
https://read.qxmd.com/read/38285104/a-desirable-advancement-but-not-without-concern-for-black-blood-sequences-vessel-wall-imaging-may-not-be-blindly-done
#14
EDITORIAL
Subhendra Sarkar
No abstract text is available yet for this article.
January 29, 2024: European Radiology
https://read.qxmd.com/read/38243667/edge-type-hyperintense-intracranial-artery-plaque-a-potential-mri-biomarker-of-stroke-recurrence
#15
JOURNAL ARTICLE
Hongxia Li, Sui Chen, Jia Liu, Yingle Li, Changsheng Zhou, Bangjun Guo, Chunxiang Tang, Quanhui Liu, Beibei Zhi, Longjiang Zhang, Zhiqiang Zhang, Xiaoqing Cheng, Guangming Lu
BACKGROUND: Identifying patients at high risk of stroke recurrence is important for stroke prevention and treatment. PURPOSE: To explore the characteristics of T1 hyperintense plaques (HIP) and their relationship with stroke recurrence in patients with symptomatic intracranial atherosclerotic stenosis (sICAS). STUDY TYPE: Retrospective. POPULATION: One hundred fifty-seven patients with moderate-to-severe (≥50%) nonocclusive sICAS and MRI studies (42 females and 115 males, mean age 58...
January 19, 2024: Journal of Magnetic Resonance Imaging: JMRI
https://read.qxmd.com/read/38216104/vessel-density-mapping-of-small-cerebral-vessels-on-3d-high-resolution-black-blood-mri
#16
JOURNAL ARTICLE
Mona Sharifi Sarabi, Samantha J Ma, Kay Jann, John M Ringman, Danny J J Wang, Yonggang Shi
Small cerebral blood vessels are largely inaccessible to existing clinical in vivo imaging technologies. This study aims to present a novel analysis pipeline for vessel density mapping of small cerebral blood vessels from high-resolution 3D black-blood MRI at 3T. Twenty-eight subjects (10 under 35 years old, 18 over 60 years old) were imaged with the T1-weighted turbo spin-echo with variable flip angles (T1w TSE-VFA) sequence optimized for black-blood small vessel imaging with iso-0.5 mm spatial resolution (interpolated from 0...
January 11, 2024: NeuroImage
https://read.qxmd.com/read/38201390/multimodality-imaging-in-cranial-giant-cell-arteritis-first-experience-with-high-resolution-t1-weighted-3d-black-blood-without-contrast-enhancement-magnetic-resonance-imaging
#17
JOURNAL ARTICLE
Jane Maestri Brittain, Michael Stormly Hansen, Jonathan Frederik Carlsen, Andreas Hjelm Brandt, Lene Terslev, Mads Radmer Jensen, Ulrich Lindberg, Henrik Bo Wiberg Larsson, Steffen Heegaard, Uffe Møller Døhn, Oliver Niels Klefter, Anne Katrine Wiencke, Yousif Subhi, Steffen Hamann, Bryan Haddock
In order to support or refute the clinical suspicion of cranial giant cell arteritis (GCA), a supplemental imaging modality is often required. High-resolution black blood Magnetic Resonance Imaging (BB MRI) techniques with contrast enhancement can visualize artery wall inflammation in GCA. We compared findings on BB MRI without contrast enhancement with findings on 2-deoxy-2-[18 F]fluoro-D-glucose positron emission tomography/low-dose computed tomography (2-[18 F]FDG PET/CT) in ten patients suspected of having GCA and in five control subjects who had a 2-[18 F]FDG PET/CT performed as a routine control for malignant melanoma...
December 29, 2023: Diagnostics
https://read.qxmd.com/read/38197587/high-resolution-magnetic-resonance-imaging-visualizes-intracranial-large-artery-involvement-in-giant-cell-arteritis
#18
JOURNAL ARTICLE
Konstanze V Guggenberger, Marius L Vogt, Jae W Song, Matthias Fröhlich, Marc Schmalzing, Nils Venhoff, Rudolf Werner, Jost Hillenkamp, Mirko Pham, Stephan Meckel, Thorsten A Bley
OBJECTIVE: Giant Cell arteritis (GCA) is a large vessel vasculitis, typically involving the aorta and its branches with predilection for the scalp arteries. Intracranial involvement is still part of ongoing research. We assess inflammation of the intracranial arteries on 3D-black-blood magnetic resonance imaging (3D-CS-BB-MRI) in patients with GCA and age-matched controls. METHODS: 105 patients with 3D-CS-BB-MRI of the brain were included in this retrospective dual-center case-control study; 55 with diagnosed GCA and 50 age-matched controls...
January 10, 2024: Rheumatology
https://read.qxmd.com/read/38191711/time-of-flight-and-black-blood-mri-to-study-intracranial-arteries-in-rats
#19
JOURNAL ARTICLE
Anne F Cayron, Olivia Bejuy, Maria Isabel Vargas, Didier J Colin, Tomohiro Aoki, Karl-Olof Lövblad, Philippe Bijlenga, Brenda R Kwak, Eric Allémann, Sandrine Morel
Intracranial aneurysms (IAs) are usually incidentally discovered by magnetic resonance imaging (MRI). Once discovered, the risk associated with their treatment must be balanced with the risk of an unexpected rupture. Although clinical observations suggest that the detection of contrast agent in the aneurysm wall using a double-inversion recovery black-blood (BB) sequence may point to IA wall instability, the exact meaning of this observation is not understood. Validation of reliable diagnostic markers of IA (in)stability is of utmost importance to deciding whether to treat or not an IA...
January 9, 2024: European Radiology Experimental
https://read.qxmd.com/read/38189798/racial-differences-in-choroidal-vascularity-index-in-healthy-patients-novel-insights
#20
JOURNAL ARTICLE
John Moir, Gabriel Kaufmann, Sarah H Rodriguez, Niloofaralsadat Nourian, Mohammed Abdul Rasheed, Kiran Kumar Vupparaboina, Jay Chhablani, Dimitra Skondra
BACKGROUND AND OBJECTIVE: Choroidal vascularity index (CVI) measures the ratio of blood vessels in the choroid to the total choroidal area. We aimed to compare CVI between young Black and White patients without a history of ocular or systemic disease. PATIENTS AND METHODS: We used a previously validated algorithm for shadow compensation and choroidal vessel binarization to measure CVI across the Early Treatment of Diabetic Retinopathy Study grid. RESULTS: Black patients had a lower CVI ( ß = -0...
January 2024: Ophthalmic Surgery, Lasers & Imaging Retina
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