AOCOPM 2025 Midyear Educational Conference-O - Future of Nuclear Pulmonary Imaging

Video Transcription

Video Summary

Dr. Mark DeSantis, an osteopathic radiology specialist, discussed advancements in nuclear pulmonology focusing on lung imaging evolution and new technologies. He traced lung imaging from early uses of radioactive isotopes and Geiger counters in the 1950s to Hal Anger's invention of the gamma camera, boosting image quality. Traditional lung scans used Xenon-133 gas for ventilation imaging and technetium-99m labeled MAA for perfusion, but these methods had limitations including availability and image clarity.<br /><br />Dr. DeSantis highlighted a promising new agent called technogas—a nanocarbon-encapsulated technetium aerosol—which offers superior ventilation imaging without the drawbacks of Xenon gas, such as special handling requirements or poor peripheral lung penetration. Technogas enables high-quality 3D single-photon emission computed tomography (SPECT) and SPECT-CT imaging, improving diagnosis of pulmonary embolism (PE), chronic obstructive pulmonary disease (COPD), and other lung conditions with lower radiation exposure than CT scanning.<br /><br />He emphasized that despite CT pulmonary angiography being the current standard for PE diagnosis, nuclear medicine techniques—especially SPECT-CT with technogas—provide enhanced functional information, higher sensitivity/specificity, and reduced radiation risk, particularly important for pregnant patients and those with contrast allergies. Economic analyses suggest SPECT-CT is cost-effective and reduces wasteful imaging.<br /><br />Dr. DeSantis concluded by noting the slow adoption of technogas in the U.S. due to regulatory hurdles and safety concerns about nanocarbon, which studies indicate are unfounded as technogas nanoparticles appear safe and potentially beneficial. This technology is revitalizing nuclear pulmonology, offering personalized, precise lung imaging crucial for improved patient outcomes.

Keywords

Correctional Healthcare

Texas Department of Criminal Justice

Ruiz Lawsuit

Correctional Managed Healthcare

University of Texas Medical Branch

Texas Tech University

Inmate Health Outcomes

nuclear pulmonology

lung imaging

technogas

SPECT-CT

pulmonary embolism

COPD diagnosis

technetium aerosol

radiation exposure

nanocarbon safety