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Radiological Investigation I: X-ray and CT01:30

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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...
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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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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.
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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: Dec 20, 2025

Biofunctionalized Prussian Blue Nanoparticles for Multimodal Molecular Imaging Applications
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Nanoparticle contrast agents for X-ray imaging applications.

Jessica C Hsu1,2, Lenitza M Nieves1,3, Oshra Betzer4

  • 1Department of Radiology, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
|May 23, 2020
PubMed
Summary
This summary is machine-generated.

Nanoparticles are emerging as advanced X-ray contrast agents, offering superior imaging capabilities and safety profiles compared to traditional agents. This review explores their development for enhanced diagnostics and targeted therapies.

Keywords:
CTX-ray imagingcell trackingdual-energy mammographylong circulatingnanoparticlesrenal clearancetargeted agentstheranostics

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Area of Science:

  • Nanotechnology
  • Medical Imaging
  • Materials Science

Background:

  • X-ray imaging is a cornerstone of modern diagnostics.
  • Current contrast agents (iodine, barium sulfate) have limitations in information content and safety.
  • Nanoparticles offer high contrast, tunable properties, and potential for targeted applications.

Purpose of the Study:

  • To review the principles of X-ray contrast generation.
  • To introduce novel X-ray imaging modalities and suitable elements for contrast agents.
  • To focus on advancements in nanoparticle-based X-ray contrast agents.

Main Methods:

  • Review of existing literature on nanoparticle contrast agents.
  • Discussion of principles of X-ray contrast generation.
  • Analysis of nanoparticle properties and applications in advanced imaging.

Main Results:

  • Nanoparticles exhibit high contrast payloads and tunable properties for improved X-ray imaging.
  • Development focuses on renally clearable, long-circulating, theranostic, and targeted agents.
  • Nanoparticle agents are being integrated with advanced imaging like multi-energy CT and mammography.

Conclusions:

  • Nanoparticles represent a significant advancement over traditional X-ray contrast agents.
  • Future research directions include addressing limitations and exploring new applications.
  • Nanoparticle contrast agents hold promise for enhanced diagnostics, targeted treatment, and theranostics.