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Related Concept Videos

Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

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 the...
X-ray Imaging01:24

X-ray Imaging

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 X-rays, and by 1900, X-ray was widely...
Radiation: Applications01:17

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
Positron Emission Tomography01:29

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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...
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...

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Updated: May 18, 2026

Guidelines and Experience Using Imaging Biomarker Explorer (IBEX) for Radiomics
10:17

Guidelines and Experience Using Imaging Biomarker Explorer (IBEX) for Radiomics

Published on: January 8, 2018

Social radiology: Where to now?

Elm Ho1

  • 1Imaging Department, Sime Darby Specialist Centre Megah Sdn. Bhd., Kuala Lumpur, Malaysia.

Biomedical Imaging and Intervention Journal
|September 13, 2012
PubMed
Summary

Diagnostic imaging, or radiology, is crucial in healthcare but inaccessible in many regions. Global initiatives are training practitioners to improve access to essential medical imaging services worldwide.

Keywords:
Radiology servicesdeveloping countriesdiagnostic imagingoutreach programmesradiation protection and safetysocial radiology

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Last Updated: May 18, 2026

Guidelines and Experience Using Imaging Biomarker Explorer (IBEX) for Radiomics
10:17

Guidelines and Experience Using Imaging Biomarker Explorer (IBEX) for Radiomics

Published on: January 8, 2018

Area of Science:

  • Medical Imaging
  • Radiology Services
  • Global Health Equity

Background:

  • Radiology is essential for medical diagnosis, disease surveillance, and treatment monitoring.
  • High costs and maintenance requirements limit radiology's availability.
  • Two-thirds of the world lacks basic diagnostic imaging, highlighting a significant healthcare gap.

Purpose of the Study:

  • To address the global deficiency in diagnostic imaging services.
  • To explore strategies for improving medical imaging access in developing nations.
  • To highlight the role of international collaboration in advancing radiology.

Main Methods:

  • Review of current global radiology resource distribution.
  • Analysis of challenges in implementing and maintaining imaging equipment.
  • Examination of educational and training programs aimed at enhancing radiology expertise.

Main Results:

  • Significant disparities exist in access to radiology services globally.
  • International organizations are actively providing training and knowledge transfer.
  • Efforts focus on building local capacity through 'train-the-trainer' models.

Conclusions:

  • Improving global access to radiology is critical for equitable healthcare.
  • Collaborative training initiatives are vital for sustainable radiology services.
  • The future of radiology shows a positive trend towards wider accessibility and impact.