Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Clinical Implications of Myocardial T1 Mapping Parameters in Relation to Left Ventricular Characteristics in Patients with Wild-Type Transthyretin Amyloid Cardiomyopathy.

International heart journal·2026
Same author

One-year worsening heart failure and myocardial T1 mapping in patients with wild-type transthyretin amyloid cardiomyopathy undergoing tafamidis treatment.

International journal of cardiology. Heart & vasculature·2026
Same author

Effect of the Second-generation Motion Correction Algorithm on Coronary Artery Calcium Scoring.

Journal of computer assisted tomography·2025
Same author

Effectiveness of a virtual reality-based interventional radiology simulator for medical student education.

Japanese journal of radiology·2025
Same author

Myocardial T1 Mapping, Left Ventricular Parameters, and Cardiac Biomarkers in Wild-Type Transthyretin Amyloid Cardiomyopathy Before and After Tafamidis Treatment.

Circulation reports·2025
Same author

Recent topics in musculoskeletal imaging focused on clinical applications of AI: How should radiologists approach and use AI?

La Radiologia medica·2025

相关实验视频

Updated: Jul 19, 2026

Development and Evaluation of 3D-Printed Cardiovascular Phantoms for Interventional Planning and Training
09:57

Development and Evaluation of 3D-Printed Cardiovascular Phantoms for Interventional Planning and Training

Published on: January 18, 2021

4.0K

冠状动脉CT血管学超分辨率深度学习重建:一个结构化幻影研究.

Toru Higaki1, Fuminari Tatsugami2, Mickaël Ohana3

  • 1Graduate School of Advanced Science and Engineering, Hiroshima University, Japan.

European journal of radiology open
|June 3, 2024
PubMed
概括

超分辨率深度学习重建 (SR-DLR) 显著提高CT图像的空间分辨率,并减少噪音. 这种先进的方法有助于诊断冠状动脉疾病,特别是冠状动脉CT血管造影 (CCTA).

关键词:
计算机断层扫描 (CT) 是一种计算机断层扫描.图像质量 图像质量有结构的幻影.基于超分辨率深度学习的重建.

更多相关视频

Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility
07:46

Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility

Published on: August 9, 2024

700
Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
05:32

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph

Published on: February 21, 2025

250

相关实验视频

Last Updated: Jul 19, 2026

Development and Evaluation of 3D-Printed Cardiovascular Phantoms for Interventional Planning and Training
09:57

Development and Evaluation of 3D-Printed Cardiovascular Phantoms for Interventional Planning and Training

Published on: January 18, 2021

4.0K
Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility
07:46

Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility

Published on: August 9, 2024

700
Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
05:32

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph

Published on: February 21, 2025

250

科学领域:

  • 医疗成像医学成像
  • 放射学中的人工智能
  • 图像重建算法 图像重建算法

背景情况:

  • 基于深度学习的重建方法,如SR-DLR,提供更好的CT图像空间分辨率.
  • 评估非线性重建方法需要解剖学相关的幻影用于临床性能评估.
  • 传统的幻影可能无法充分评估先进的重建技术的临床实用性.

研究的目的:

  • 评估基于超分辨率深度学习的重建 (SR-DLR) 的临床性能.
  • 为了评估CT扫描中的图像质量改进,使用结构化幻影模拟人体解剖学.
  • 调查SR-DLR在冠状动脉CT血管学 (CCTA) 应用中的疗效.

主要方法:

  • 使用了一个结构化幻影,模拟了冠状动脉,狭窄和支架移植.
  • 用SR-DLR和传统方法 (混合IR,DLR) 重建CT图像.
  • 图像噪声和空间分辨率被定量评估.

主要成果:

  • 与DLR (0.976) 和HIR (0.792) 相比,SR-DLR显示出更高的空间分辨率 (1.379周期/毫米在10%的MTF)
  • SR-DLR实现了最小的图像噪声 (13.1 HU),超过了DLR (19.0 HU) 和HIR (21.1 HU).
  • SR-DLR准确地可视化了冠状动脉狭窄和植入支架移植的光线.

结论:

  • 无需专门的设备,SR-DLR可提供高空间分辨率和低噪声的CT图像.
  • 在CCTA中,SR-DLR是诊断冠状动脉疾病的宝贵工具.
  • 该方法提高了需要高空间分辨率的CT检查的诊断准确性.