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Related Concept Videos

Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
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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...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...

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Updated: Jun 8, 2026

Phase-Resolved Functional Lung MRI for Pulmonary Ventilation and Perfusion (V/Q) Assessment
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V/Q imaging in 2010: a quick start guide.

Elizabeth A Bailey1, Dale L Bailey, Paul J Roach

  • 1Department of Nuclear Medicine, Royal North Shore Hospital, Sydney, Australia. EBailey@nsccahs.health.nsw.gov.au

Seminars in Nuclear Medicine
|October 6, 2010
PubMed
Summary
This summary is machine-generated.

This review provides protocols for ventilation-perfusion (V/Q) imaging using current technology. It highlights the importance of good ventilation studies and how SPECT imaging can produce planar-like images, simplifying clinical practice.

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Area of Science:

  • Nuclear Medicine
  • Radiology
  • Medical Imaging

Background:

  • Ventilation-perfusion (V/Q) imaging is crucial for diagnosing lung conditions.
  • Current technology allows for advanced imaging techniques like single-photon emission computed tomography (SPECT).
  • Established protocols for V/Q SPECT imaging are lacking, hindering widespread clinical adoption.

Purpose of the Study:

  • To review and establish protocols for planar and SPECT V/Q imaging.
  • To provide guidelines for implementing these protocols in routine clinical practice.
  • To demonstrate the utility of SPECT data for generating planar-like images.

Main Methods:

  • Review of current generation V/Q imaging technologies.
  • Development of suggested protocols for both planar and SPECT V/Q imaging.
  • Emphasis on optimizing ventilation imaging acquisition.
  • Exploration of SPECT data reconstruction for planar image display.

Main Results:

  • Established protocols for planar and SPECT V/Q imaging are presented.
  • The importance of a high-quality ventilation component in V/Q imaging is stressed.
  • SPECT imaging can yield acceptable planar-like images, potentially streamlining workflows.
  • Protocols are designed for easy transfer into clinical settings.

Conclusions:

  • Standardized protocols are essential for consistent and accurate V/Q SPECT imaging.
  • Optimizing ventilation studies is critical for diagnostic efficacy.
  • SPECT imaging offers a versatile approach, capable of producing both cross-sectional and planar-like views.
  • These guidelines aim to facilitate the integration of advanced V/Q imaging techniques into routine nuclear medicine practice.