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Related Concept Videos

Computed Tomography01:10

Computed Tomography

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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...
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Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

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Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
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Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

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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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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

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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
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...
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Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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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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Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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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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Using Micro-computed Tomography for the Assessment of Tumor Development and Follow-up of Response to Treatment in a Mouse Model of Lung Cancer
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Lung Cancer Screening Using Low-Dose Computed Tomography.

Brandon Hirsch1

  • 1Brandon Hirsch, MS, CMD, R.T.(R)(CT)(T), is an assistant professor of radiologic science at Southern Illinois University Carbondale.

Radiologic Technology
|January 12, 2022
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Summary
This summary is machine-generated.

Lung cancer screening using low-dose computed tomography helps detect the disease early in high-risk individuals, improving survival rates. This is crucial as lung cancer often presents at advanced stages, with smoking being a primary cause.

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Area of Science:

  • Oncology
  • Pulmonology
  • Radiology

Background:

  • Lung and bronchus cancers represent a significant portion of cancer incidence and mortality in the US.
  • Late diagnosis is a major factor contributing to the poor prognosis of lung cancer.
  • Tobacco smoking is the leading cause of lung cancer deaths, affecting millions eligible for screening.

Purpose of the Study:

  • To highlight the importance of early lung cancer detection.
  • To emphasize the role of screening in improving patient survival rates.

Main Methods:

  • Utilizing low-dose computed tomography (LDCT) for screening.
  • Focusing on high-risk populations, primarily current and former smokers.

Main Results:

  • Screening identifies lung cancer at earlier, more treatable stages.
  • Early diagnosis through LDCT has led to increased lung cancer survival rates.

Conclusions:

  • Low-dose computed tomography screening is effective for early lung cancer detection in high-risk individuals.
  • Screening facilitates timely intervention, significantly improving patient outcomes and survival.