研究目的
To report a case of pulmonary bone cement embolism and describe the CT angiography findings with special emphasis on the potential benefits of spectral imaging.
研究成果
Spectral imaging allowed for better detection of smaller emboli even in the peripheral pulmonary arteries, as well as evaluation of parenchymal perfusion by assessing the parenchymal iodine content. The use of the material decomposition technique with spectral CT may help to compensate for the drawbacks of using only Hounsfield units in differentiating materials with similar CT densities.
研究不足
The study is a case report, which limits the generalizability of the findings. Further studies involving more cases are needed to confirm the benefits of spectral imaging in patients with bone cement embolism.
1：Experimental Design and Method Selection:
The case report describes the use of spectral CT pulmonary angiography (CTPA) with gemstone spectral imaging (GSI) to diagnose pulmonary bone cement embolism.
2：Sample Selection and Data Sources:
A 56-year-old woman with dyspnea and hypotension following multiple vertebroplasties.
3：List of Experimental Equipment and Materials:
GE Medical Systems' AW Gemstone spectral imaging software.
4：Experimental Procedures and Operational Workflow:
CTPA was performed using GSI to obtain spectral CT images by fast kV switching, allowing for virtual monochromatic images at different kV levels and the creation of material density images.
5：Data Analysis Methods:
Iodine maps were created using the GSI software to analyze the material composition and perfusion defects.
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