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Related Concept Videos

Ultrasonography01:17

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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
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...
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...
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...

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Related Experiment Video

Updated: May 21, 2026

Automated Joint Space Detection Improves Bone Segmentation Accuracy
06:45

Automated Joint Space Detection Improves Bone Segmentation Accuracy

Published on: November 28, 2025

Psoriatic arthritis: imaging techniques.

A Spadaro1, E Lubrano

  • 1Dipartimento di Medicina Interna e Specialità Mediche, UOC di Reumatologia, Sapienza, University of Rome, Rome, Italy. a.spadaro.reuma@virgilio.it

Reumatismo
|June 13, 2012
PubMed
Summary
This summary is machine-generated.

Advanced imaging like MRI and ultrasound are key for diagnosing psoriatic arthritis (PsA). These techniques effectively detect joint and soft tissue inflammation, aiding early diagnosis and monitoring of PsA progression.

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Area of Science:

  • Rheumatology
  • Medical Imaging

Background:

  • Psoriatic arthritis (PsA) diagnosis and monitoring rely on various imaging modalities.
  • Radiography reveals destructive and proliferative bone changes characteristic of PsA.

Purpose of the Study:

  • To review and compare the roles of different imaging techniques in assessing psoriatic arthritis.
  • To highlight the utility of ultrasonography (US) and magnetic resonance imaging (MRI) in PsA evaluation.

Main Methods:

  • Review of current literature on imaging in psoriatic arthritis.
  • Discussion of findings from radiography, ultrasonography (US), magnetic resonance imaging (MRI), computed tomography (CT), and bone scintigraphy.

Main Results:

  • Ultrasonography (US) with power Doppler is valuable for assessing musculoskeletal and cutaneous involvement, monitoring therapy, and guiding injections.
  • Magnetic resonance imaging (MRI) excels at visualizing inflammation in joints and entheses, crucial for early diagnosis and understanding disease patterns.
  • Computed tomography (CT) has limited use in peripheral joints but can assess spine disease and sacroiliac joint erosions; bone scintigraphy lacks specificity.

Conclusions:

  • Ultrasonography (US) and MRI are increasingly important for comprehensive psoriatic arthritis (PsA) assessment, surpassing traditional radiography and bone scintigraphy in many aspects.
  • MRI provides insights into the inflammatory pathways in PsA, emphasizing enthesitis as a primary feature.
  • The choice of imaging technique depends on the specific clinical question in evaluating psoriatic arthritis.