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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...
Brain Imaging01:14

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
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...
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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...

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Related Experiment Video

Updated: May 25, 2026

Non-invasive Parenchymal, Vascular and Metabolic High-frequency Ultrasound and Photoacoustic Rat Deep Brain Imaging
12:00

Non-invasive Parenchymal, Vascular and Metabolic High-frequency Ultrasound and Photoacoustic Rat Deep Brain Imaging

Published on: March 2, 2015

In the spotlight: biomedical imaging.

Andrew F Laine1

  • 1Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA. laine@columbia.edu

IEEE Reviews in Biomedical Engineering
|January 26, 2012
PubMed
Summary
This summary is machine-generated.

This review covers advances in multimodal temporal data analysis, high-field magnetic resonance spectroscopy, computer-aided diagnosis, and cardiac imaging. It highlights new methods for tracking, detection, segmentation, and myocardial strain analysis.

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Area of Science:

  • Medical Imaging
  • Data Analysis
  • Biomedical Engineering

Background:

  • Multimodal temporal data analysis is crucial for understanding complex biological processes.
  • High-field magnetic resonance spectroscopy offers detailed molecular insights.
  • Computer-aided diagnosis (CAD) and advanced cardiac imaging are transforming patient care.

Purpose of the Study:

  • To review recent research advances in key areas of medical data analysis and imaging.
  • To highlight emerging trends and techniques in multimodal temporal data, MR spectroscopy, CAD, and cardiac diagnostics.

Main Methods:

  • Review of statistical models for tracking, detection, and segmentation in multimodal temporal imagery.
  • Overview of slice selective free induction decay (FID) acquisition for 7 tesla (7T) high-field MR imaging.
  • Highlights in comparative validation of computer-aided diagnosis (CAD) algorithms.
  • Description of advances in real-time three-dimensional (3-D) echocardiography for myocardial strain analysis.

Main Results:

  • Promising statistical models for multimodal temporal image analysis have been identified.
  • Slice selective FID acquisition for 7T MR imaging provides a new approach.
  • Comparative validation of CAD algorithms shows progress across various applications.
  • Real-time 3-D echocardiography enables advanced myocardial strain computation.

Conclusions:

  • Significant progress has been made in multimodal temporal data analysis and high-field MR spectroscopy.
  • Computer-aided diagnosis and cardiac imaging techniques are rapidly advancing.
  • These developments promise improved diagnostic accuracy and patient outcomes in cardiology and beyond.