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Updated: Jun 2, 2026

Non-invasive Optical Imaging of the Lymphatic Vasculature of a Mouse

Non-invasive Optical Imaging of the Lymphatic Vasculature of a Mouse

Published on: March 8, 2013

[Visualization of deep lung lymphatic network using radioliposomes].

M F Botelho¹, J J P De Lima, I C Dormehl

¹Instituto Biofísica/Biomatemática, IBILI, Faculdade de Medicina, Azinhaga de Santa Comba, Coimbra, Portugal. filomena@ibili.uc.pt

Revista Portuguesa De Pneumologia

|May 10, 2011

Summary

This summary is machine-generated.

This study visualizes deep lung lymphatic networks in baboons using specialized liposomes. The technique shows potential for targeted lung drug delivery, aiding in treating lung diseases and cancer.

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Non-invasive Optical Imaging of the Lymphatic Vasculature of a Mouse

Non-invasive Optical Imaging of the Lymphatic Vasculature of a Mouse

Published on: March 8, 2013

Long-term High-Resolution Intravital Microscopy in the Lung with a Vacuum Stabilized Imaging Window

Long-term High-Resolution Intravital Microscopy in the Lung with a Vacuum Stabilized Imaging Window

Published on: October 6, 2016

Area of Science:

Nuclear medicine
Pulmonary physiology
Nanotechnology

Background:

Deep lymphatic drainage is crucial for clearing lung airways of foreign materials and is implicated in lung tumor spread.
Liposomes are utilized as model foreign particles to assess lymphatic clearance.

Purpose of the Study:

To visualize the deep lymphatic lung network in baboons using aerosolized liposomes labeled with technetium-99m pertechnetate (99mTc-HMPAO).
To evaluate the potential of this imaging technique for targeted lung drug delivery.

Main Methods:

Baboons inhaled aerosols of liposomes encapsulating (99m)Tc-HMPAO.
Scintigraphic imaging was performed at various time points post-inhalation.
Regions of interest (ROIs) and time-activity curves were analyzed for biokinetic information.

Main Results:

Axillary lymph nodes were visualized within 30 minutes, with increased clarity at 1 hour.
Abdominal aortic and inguinal lymph nodes became visible 1 hour post-inhalation.
Late imaging provided no additional diagnostic information.

Conclusions:

The developed technique effectively visualizes the deep lymphatic lung network and associated lymph nodes.
This methodology offers a promising tool for targeted delivery of cytotoxic drugs to the lungs.