Radiology: What is the relationship between qSM magnetization rates and CT values in intracranial hemorrhage, calcification and heavy metal deposition?

Backgroundquantitative magnetization rate maps (QSMs) can be used to identify calcification and iron depositionAt present, there are few studies to evaluate the correlation between CT values and magnetic resonance magnetization ratespurpose
this study aims to evaluate the correlation between metal content, CT value and transmagnetic and transmagnetic model magnetization rate, and the correlation between the magnetization rate of metal characteristic structure and CT value in the brainmaterials and methods
ct and MRI QSM scans of rolled and calcium-containing, patients and healthy volunteersIn the mold examination, the correlation between metal content, CT value and magnetization rate was evaluatedIn human studies, the correlation between Person and Spearman was used to analyze and evaluate the correlation between CT values and the magnetization rate of pale spheres, shell cores, tail cores, black matter, red nucleus, tooth core, vein clumps, and areas of interest for hemorrhagic and calcification lesionsresultsstudy included 84 patients and 20 healthy volunteersIn the mold evaluation, the concentration of radon (R?2 is 0.95 and 0.99, onlyly; P .001 for both), calcium concentration (R?2 s 0.89 (P-005) and R?2 s .98 (P .001) are significantly correlated with CT, MRI QSM valuesIn human examinations, there was a significant positive correlation between CT values and magnetization rates in GP (R?2 s 0.52, P .001), haemorrhagic lesions (R?2 s 0.38, P .001);conclusions
this study shows a positive correlation between CT values and magnetization rates in pale ball and hemorrhagic lesions, and negative correlation between the two in vein and calcification lesions