Dual-Energy CT in Head and Neck Imaging
Elise D Roele1, Veronique C M L Timmer2, Lauretta A A Vaassen2
1Department of Radiology, Maastricht University Medical Centre+, PO Box 5800, 6202 AZ Maastricht, The Netherlands.
Current Radiology Reports
|April 25, 2017
Summary
Dual-energy CT (DECT) offers advanced imaging for head and neck radiology. This technique improves lesion detection, tumor delineation, and treatment monitoring in cancer patients, potentially at a similar radiation dose.
Area of Science:
- Radiology
- Medical Imaging
- Oncology
Background:
- Dual-energy CT (DECT) provides advanced imaging capabilities beyond conventional CT.
- Its application in head and neck radiology is expanding due to its unique data acquisition and processing.
Purpose of the Study:
- To elucidate the principles of Dual-energy CT (DECT).
- To highlight the diverse applications and benefits of DECT in head and neck radiology.
Main Methods:
- DECT enables the creation of additional datasets from conventional scans.
- Utilizes material decomposition algorithms for enhanced lesion detection and tumor delineation.
- Incorporates iodine concentration measurements, virtual non-calcium, and virtual mono-energetic imaging reconstructions.
Main Results:
- Improved differentiation of malignant vs. nonmalignant lymph nodes using iodine concentration.
- Enhanced detection of bone marrow edema with virtual non-calcium images.
- Reduced metallic artifacts and improved signal-to-noise ratio with virtual mono-energetic imaging.
Conclusions:
- DECT plays a crucial role in managing head and neck cancer patients, from diagnosis to follow-up.
- It is also beneficial for imaging infections, inflammation, and parathyroid conditions.
- DECT reconstructions can be achieved at comparable radiation doses to conventional scanning.
Keywords:
Dual-energy CTHead and neck cancerLymph node imagingMetal artifact reductionParathyroid adenomaSpectral CTMore Related Videos
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