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Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

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The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
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X-ray Imaging01:24

X-ray Imaging

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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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...
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Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

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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...
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Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

209
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
209
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

86
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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Related Experiment Video

Updated: Jun 5, 2025

Two-Dimensional X-Ray Angiography to Examine Fine Vascular Structure Using a Silicone Rubber Injection Compound
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Evaluating the functionality of x-ray angiography systems based on DICOM structured reports.

Artur Omar1, Markus Hulthén2, Angeliki Karambatsakidou3

  • 1Medical Radiation Physics and Nuclear Medicine, Karolinska University Hospital, Stockholm, Sweden; Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.

Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)
|December 11, 2024
PubMed
Summary

Evaluating x-ray angiography system functionality using DICOM radiation dose structured reports (RDSR) is feasible. Detailed exposure data from RDSRs enables system performance assessment, though some analyses require extensive clinical data due to standard limitations.

Keywords:
DICOM structured reportsQuality assuranceX-ray angiography

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Area of Science:

  • Medical Imaging Physics
  • Radiology Informatics

Background:

  • The DICOM Radiation Dose Structured Report (RDSR) standard facilitates the collection of detailed exposure data from medical imaging systems.
  • Assessing the technical functionality of x-ray angiography (XA) systems is crucial for ensuring diagnostic image quality and patient safety.

Purpose of the Study:

  • To determine the feasibility of evaluating XA system functionality using exposure data from DICOM RDSRs.
  • To explore applications of RDSR data for system performance monitoring and characterization.

Main Methods:

  • Utilized RDSR data from Philips Healthcare XA systems across various clinical suites (cardiology, radiology, neurology).
  • Collected data over seven years using a DICOM server and custom parser to analyze irradiation events.
  • Developed methods to evaluate XA system performance, including tube output, exposure geometry, and automatic control logic.

Main Results:

  • Demonstrated feasibility of evaluating XA system functionality via RDSR data.
  • Validated a method for assessing X-ray tube output, showing excellent agreement with conventional measurements and theoretical predictions.
  • Established reference data for exposure geometry and beam quality across different angiography procedures.

Conclusions:

  • Evaluating XA system technical functionality using RDSRs is feasible.
  • Limitations in the current DICOM RDSR standard necessitate substantial clinical data for certain analyses.
  • RDSR data offers a valuable resource for system performance monitoring and establishing procedural references.