AI Article Synopsis
- The study evaluated multi-quantitative parameters from spectral CT—specifically normalized iodine concentration (NIC), spectral attenuation curve slope (SACS), area under curve (AUC), and iodine concentration difference (ICD)—to assess parotid gland tumors.
- Ninety-two patients with confirmed parotid gland tumors underwent CT scans, categorized into four groups based on tumor type, and various parameters were measured and analyzed using statistical methods.
- Results showed significant differences in the spectral CT parameters among the tumor groups, suggesting that these measurements could effectively differentiate between various types of parotid gland tumors.
Article Abstract
Objective: This study aimed to investigate the value of normalized iodine concentration (NIC), spectral attenuation curve slope (SACS), area under curve (AUC), and iodine concentration difference (ICD) generated from spectral CT in the assessment of parotid gland tumors.
Methods: Ninety-two patients with pathologically confirmed parotid gland tumors underwent arterial phase- and venous phase-enhanced CT in spectral CT. The patients were divided into the pleomor-phic adenoma group (group A), Warthin tumor group (group B), basal cell tumor group (group C), and malignant tumor group (group D). The SACS, AUC, NIC, ICD were measured and analyzed. Statistical analyses were performed by one-way ANOVA, and statistical significance was set at P<0.05.
Results: SACS(AP), AUC(AP), and NIC(AP) in group A were lower than those in other groups; SACS(VP) and AUC(VP) in group C were higher than those in other groups; NIC(AP) and NIC(VP) in group D were higher than those in other groups; and ICD in group B was a positive number. The difference in SACS(AP) and AUC(AP) in groups B and C, SACS(VP) and AUC(VP) in groups C and D, and ICD in groups A and C were not statistically significant. By contrast, the diffe-rence between the other groups was statistically significant (P<0.05). The difference in NIC(AP) between groups A and B and groups C and D and the difference in NIC(VP) between groups A and C, groups A and D, and groups B and C were statistically significant (P=0.005, 0.025, 0.002, 0.038, and 0.049, respectively).
Conclusions: Multi-quantitative parameters from spectral CT might be helpful in differentiating various types of parotid gland tumors.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7030760 | PMC |
| http://dx.doi.org/10.7518/hxkq.2019.06.011 | DOI Listing |
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