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

Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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 III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...

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

Generative AI and large language models in radiography education: Possibilities, obstacles, and expectations for academic staff.

Journal of medical imaging and radiation sciences·2026
Same author

Radiation awareness and occupational concerns among radiographers and students.

Radiography (London, England : 1995)·2026
Same author

Using Think-Aloud methodology and protocol analysis in mammographic practice research.

Radiography (London, England : 1995)·2026
Same author

Perceived Barriers and Facilitators to Radiology Examinations Among Patients with Parkinson's Disease in Ireland.

Radiography (London, England : 1995)·2026
Same author

A retrospective comparison of image quality in T2-weighted paediatric brain MRI using Children- centred Care versus anaesthesia.

Radiography (London, England : 1995)·2026
Same author

Computed tomography, ultrasound and fluoroscopy guidance in intra-articular sacroiliac joint injections: A systematic review.

Radiography (London, England : 1995)·2026
Same journal

Perceptions and concerns regarding medical exposure to ionizing radiation in women of reproductive age: A systematic review.

Radiography (London, England : 1995)·2026
Same journal

The perceived value of clinical reflective work undertaken by radiography students in Ireland.

Radiography (London, England : 1995)·2026
Same journal

Optimisation of radiation dose and image quality in paediatric chest and abdominal CT examinations: A systematic review.

Radiography (London, England : 1995)·2026
Same journal

Assessing key aspects of equality, diversity and inclusion (EDI) among undergraduate radiography students at an Irish university.

Radiography (London, England : 1995)·2026
Same journal

Magnetic resonance guided radiotherapy (MRgRT) and clinical outcomes: A systematic review.

Radiography (London, England : 1995)·2026
Same journal

Taking the mobile to the patient's home: A systematic review of domiciliary x-ray imaging.

Radiography (London, England : 1995)·2026
查看所有相关文章

相关实验视频

Updated: May 11, 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

心脏计算机断层扫描中的自动3D摄像头定位:一个幻影研究

Y H Hadi1, A Legoff2, N Moore3

  • 1Discipline of Medical Imaging and Radiation Therapy, School of Medicine and Health, University College Cork, Ireland; Department of Medical Imaging and Intervention, King Abdullah Medical City (KAMC), Makkah, Saudi Arabia.

Radiography (London, England : 1995)
|May 16, 2025
PubMed
概括
此摘要是机器生成的。

在心脏CT血管造影 (CCTA) 中,自动化的3D摄像头定位显著提高了准确性,降低了辐射剂量,并提高了图像质量. 这项技术有望改善患者护理和诊断冠状动脉疾病的安全性.

关键词:
心脏成像 - - 心脏成像图像质量 图像质量患者的位置定位.辐射剂量 辐射剂量电脑断层扫描X射线扫描

更多相关视频

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery
05:12

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery

Published on: August 12, 2021

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

相关实验视频

Last Updated: May 11, 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

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery
05:12

Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery

Published on: August 12, 2021

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

科学领域:

  • 医疗成像医学成像
  • 辐射技术 辐射技术
  • 心血管成像 - 心血管成像

背景情况:

  • 心脏计算机断层扫描血管造影 (CCTA) 对于诊断冠状动脉疾病至关重要.
  • 在CCTA中准确的患者定位对于优化图像质量 (IQ) 和最大限度地减少辐射暴露至关重要.
  • 垂直失调可能会对智商产生负面影响,并增加辐射剂量,强调需要精确定位.

研究的目的:

  • 评估CCTA中自动3D摄像头定位系统的有效性.
  • 评估自动3D相机定位对定位精度,辐射剂量和图像质量的影响.

主要方法:

  • 使用多用途胸部N1幻影在三种体型的潜在幻影研究.
  • 用GE Revolution Apex Elite扫描仪进行的扫描,患者的方向和身体覆盖的变化.
  • 使用DoseWatch软件测量的垂直偏移;用DLP和CTDIvol量化的辐射剂量;通过SNR,CNR和明显性指数评估的智商.

主要成果:

  • 自动3D摄像头定位实现了平均1.0 (1.5) 毫米的垂直偏移.
  • 更大的幻影尺寸与偏离中心的增加有关 (p = 0.004),更大的偏移与更高的辐射剂量相关 (r = 0.45,p < 0.05).
  • 图像质量指标,包括SNR和CNR,随着偏移的增加而下降,SNR从71.降至50.9,CNR从0.2降至-0.6.

结论:

  • 自动化的3D摄像头定位提高了定位准确度,减少了辐射暴露,并提高了CCTA中的图像质量.
  • 这些发现表明,这项技术支持放射科医生优化CCTA程序.
  • 预计CCTA中的自动3D摄像头定位将改善患者的护理和安全.