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Related Concept Videos

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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Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
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Related Experiment Video

Updated: Aug 26, 2025

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
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Functional lung imaging in thoracic tumor radiotherapy: Application and progress.

Pi-Xiao Zhou1,2, Shu-Xu Zhang1

  • 1Radiotherapy Center, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China.

Frontiers in Oncology
|October 10, 2022
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Summary

Functional lung imaging aids radiotherapy planning for thoracic tumors by minimizing radiation dose to healthy lung tissue, thereby reducing radiation-induced lung injury and improving patient quality of life.

Keywords:
four-dimensional CTfunctional lungmagnetic resonance imaging (MRI)perfusion (Q)positron emission tomography (PET)radiotherapysingle-photon emission computed tomography (SPECT)ventilation (V)

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Area of Science:

  • Oncology
  • Medical Imaging
  • Radiation Therapy

Background:

  • Radiotherapy is crucial for thoracic tumors but limited by radiation-induced lung injury.
  • Radiation-induced lung injury negatively impacts patient quality of life and treatment efficacy.
  • Current radiotherapy planning struggles to balance tumor coverage with lung protection.

Purpose of the Study:

  • To review functional lung imaging modalities for radiotherapy planning.
  • To assess the application and progress of functional lung imaging in thoracic tumor treatment.
  • To explore the benefits of functional lung protection plans in reducing radiation-induced lung injury.

Main Methods:

  • Review of lung ventilation and/or perfusion functional imaging techniques.
  • Analysis of functional lung imaging integration into radiotherapy planning.
  • Evaluation of clinical outcomes and challenges associated with functional lung protection.

Main Results:

  • Functional lung imaging allows for personalized radiotherapy planning by incorporating lung function.
  • Functional lung protection plans effectively minimize radiation dose to healthy lung tissue.
  • Studies show reduced incidence and severity of radiation-induced lung injury with functional lung planning.

Conclusions:

  • Functional lung imaging is a valuable tool for optimizing thoracic radiotherapy.
  • Integrating functional lung data into planning improves treatment safety and patient outcomes.
  • Further research is needed to address practical challenges and advance functional lung radiotherapy.