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Related Concept Videos

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 I: CT and MRI01:14

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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.
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...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

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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
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Computed Tomography01:10

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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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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

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
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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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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Modeling Brain Metastases Through Intracranial Injection and Magnetic Resonance Imaging
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Imaging for head and neck cancer.

Jesty Abraham1

  • 1Department of Radiology, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111, USA.

Surgical Oncology Clinics of North America
|May 17, 2015
PubMed
Summary

Computed tomography (CT) and magnetic resonance imaging (MRI) are key for diagnosing head and neck cancers. Positron emission tomography/computed tomography (PET/CT) aids in evaluating advanced or recurrent disease.

Area of Science:

  • Radiology
  • Oncology
  • Medical Imaging

Background:

  • Imaging plays a crucial role in managing head and neck cancers.
  • Different imaging modalities offer unique advantages for specific tumor locations and stages.

Purpose of the Study:

  • To outline the appropriate use of various imaging techniques in head and neck cancer management.
  • To highlight the strengths of CT, MRI, and PET/CT in evaluating different types of head and neck tumors.

Main Methods:

  • Computed tomography (CT) is preferred for initial imaging of oral, oropharyngeal, laryngeal, and hypopharyngeal lesions due to rapid acquisition and reduced artifacts.
  • Magnetic resonance imaging (MRI) is recommended for sinonasal, nasopharyngeal, and salivary gland tumors for superior tumor extent delineation.
  • Positron emission tomography/computed tomography (PET/CT) is typically used for advanced disease staging, assessing metastatic spread, and evaluating post-treatment residual or recurrent disease.
Keywords:
AnatomyHead and neckImagingNeoplasm

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Main Results:

  • CT effectively images lesions in the oral cavity, larynx, and pharynx, minimizing motion artifacts.
  • MRI provides detailed visualization of tumor extent for sinonasal, nasopharyngeal, and salivary gland cancers.
  • PET/CT is valuable for detecting distant metastases and assessing treatment response.

Conclusions:

  • The choice of imaging modality depends on the tumor's location and stage in head and neck cancer.
  • Optimal management integrates imaging findings with clinical and physical examinations.
  • CT, MRI, and PET/CT serve distinct but complementary roles in the comprehensive evaluation of head and neck malignancies.