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TABLE 3: Perfusion CT parameters of different structures and lesions
ROI Perfusion Parameters
Blood Flow (mL/100g/min) Blood volume (mL/100g) MTT (sec) CP (mL/100g/min)
Muscles of mastication 14.7 ± 14.4^* 1.5 ± 0.4^* 16.1 ± 8.8^* 9.0 ± 4.7^*
Paraspinous muscles 4.7 ± 2.7^* 1.1 ± 0.6^* 20.8 ± 6.9^* 6.5 ± 5.3^*
Sternocleidomastoid muscle 16.4 ± 10.1^* 1.4 ± 0.7^‡ 10.6 ± 5.1^* 5.4 ± 4.0^*
Thyroid gland 154.5 ± 41.8 14.0 ± 2.0^* 6.3 ± 0.6^* 29.7 ± 8.8
Salivary glands^† 51.7 ± 39.7 4.2 ± 1.9 8.2 ± 4.1^‡ 37.9 ± 12.6^‡
Malignant lesions 94.9 ± 47.9 4.4 ± 2.2 3.3 ± 0.9 23.2 ± 4.6
Benigh lesions 38.5 ± 16.8^‡ 3.8 ± 1.2 11.8 ± 4.5^* 24.3 ± 9.2
Note.—Data are the mean ± standard deviation. CP = capillary permeability surface product.
* P < .001, malignant lesions vs other structures.
† Parotid and submandibular glands.
‡ P < .05, malignant lesions vs other structures.