38. CT technology update with Andrew Murphy, Ben Hudson and Tim Szczykutowicz
Jan 8, 2024
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Radiology experts Andrew Murphy, Ben Hudson, and Tim Szczykutowicz discuss advances in CT technology including dual energy scanning and photon counting CT. They explore the potential clinical applications of dual-energy scanning and highlight the importance of tailored protocols in cardiac CT imaging. The chapter also emphasizes the significance of effective communication and collaboration in radiology, and the drawbacks of hoarding knowledge.
Dual Energy CT technology has potential but its adoption is limited due to cost and lack of evidence.
Clear communication and collaboration are crucial for achieving high-quality cardiac CT scans.
Photon counting CT technology shows promise but further evidence is needed before widespread implementation.
Deep dives
Dual Energy CT and its Applications
Dual Energy CT technology, which offers different effective energy datasets, has been utilized for various applications such as pulmonary angiography, gout imaging, and trauma imaging. However, its use is still limited and not widely implemented. While it shows promise for certain indications, its overall impact on patient care and outcomes is still being researched. Vendors often emphasize the potential benefits of Dual Energy CT, but it is important to distinguish genuine technological innovation from marketing hype. Despite its potential, the cost and lack of sufficient evidence for routine clinical use make it less conducive to widespread adoption at present.
Cardiac Imaging Challenges and Protocols
Cardiac imaging can be a complex and challenging aspect of CT imaging. It requires collaboration and communication between radiologists, radiographers, and physicists to develop tailored protocols that optimize image quality and diagnostic potential. Factors such as heart rate, calcium presence, and patient-specific considerations influence protocol selection. While some centers focus on gated protocols, others emphasize prospective scanning with careful consideration of diastolic imaging, ultra-high-pitch mode, and specialized applications for interventions and contrast staining. Clear communication and understanding among the imaging team are crucial for achieving high-quality cardiac CT scans.
Photon Counting CT: Potentials and Limitations
Photon counting CT technology shows promise in improving high contrast spatial resolution, particularly for MSK imaging, temporal bone imaging, and certain cardiac applications. However, its overall clinical impact and cost-effectiveness are still being evaluated. While it may provide better resolution for specific imaging needs, its spectral imaging capabilities do not significantly outperform current dual energy CT methods. Large file sizes and infrastructure requirements may also pose challenges for widespread adoption. Despite the potential benefits, it is important to approach photon counting CT with caution and await further evidence of its clinical value before widespread implementation.
Radiologist-Radiographer Collaboration in CT Scanning
Effective collaboration between radiologists and radiographers is essential for optimal CT scanning protocols and image acquisition. Radiologists should actively engage radiographers by explaining the rationale behind specific scanning decisions and involving them in professional development activities. This collaboration helps build a cohesive team where radiographers gain a deeper understanding of the diagnostic goals, allowing them to contribute more effectively to protocol customization and image quality optimization. Communication and mutual trust between radiologists, physicists, and radiographers are key in achieving high-quality CT scans and enhancing patient care.
Standardizing CT Protocols and Balancing Recall Rates
Standardizing CT protocols can be challenging due to individual radiologist preferences and varying clinical indications. Balancing recall rates is essential for efficient imaging practice, avoiding underutilization or excessive scanning. Optimizing protocol selection is a continuous process that requires ongoing collaboration and feedback between radiologists and radiographers. Individual patient characteristics, practical limitations, and efficient resource utilization should inform protocol design. Striving for an appropriate recall rate rather than aiming for zero recalls helps maintain a balance between diagnostic accuracy and efficient resource allocation, ensuring optimal patient care.
A hype-free chat about advances in radiology technology including dual energy CT and photon counting CT. Meanwhile, Frank and Andrew continue their hunt for a podcast merchandise idea - purple fire goat pyjamas anyone?
