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Radiological Investigation I: X-ray and CT

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...

Imaging Studies I: CT and MRI

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 III: Computed Tomography

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...

Computed Tomography

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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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
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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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Related Experiment Video

Updated: Jun 2, 2026

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

Children, CT Scan and Radiation.

Morteza Bajoghli¹, Farshad Bajoghli, Nazila Tayari

¹Department of Radiology, Al-Zahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.

International Journal of Preventive Medicine

|May 14, 2011

Summary

Children require lower radiation doses during computerized tomography (CT) scans due to increased sensitivity. Adhering to proper protocols and minimizing radiation exposure is crucial for pediatric safety.

Keywords:

Computer tomography Magnetic Resonance Imaging Millisievert Prevention Radiation

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Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

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Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

Published on: July 30, 2009

Area of Science:

Medical Imaging
Pediatric Radiology
Radiation Oncology

Background:

Children exhibit heightened sensitivity to ionizing radiation compared to adults.
Computerized tomography (CT) scans constitute 25% of all medical imaging procedures.
CT scans are implicated in over 2% of all cancer diagnoses in the USA.

Purpose of the Study:

To emphasize the critical need for reducing radiation doses in pediatric CT scans.
To highlight the importance of risk-benefit awareness for CT procedures.
To advocate for standardized radiation protection protocols in pediatric imaging.

Main Methods:

Review of current practices in pediatric computerized tomography.
Analysis of radiation dose ranges and their implications.
Assessment of safety protocols and personnel requirements during pediatric CT scans.

Main Results:

Effective radiation doses for CT scans should be maintained between 0.8 and 10.5 millisievert.
Standardized protocols across healthcare facilities are essential for consistent radiation safety.
The presence of trained technicians and radiologists is recommended during pediatric CT examinations.

Conclusions:

Minimizing radiation exposure during CT scans is vital due to cumulative hazardous effects.
Alternative imaging modalities like MRI and ultrasound should be considered for pediatric patients when feasible.
Strict adherence to radiation protection principles is paramount in pediatric diagnostic imaging.