• Terapevt Arkh · Apr 2021

    [Peculiarities of sonoelastographic imaging of thyroid papillary cancer in presence of autoimmune thyroiditis].

    • A R Khachatryan, G J Vardanyan, G A Avetisyan, A S Chomoyan, S E Baghdasaryan, and K A Porksheyan.
    • Medical Center "Dialab".
    • Terapevt Arkh. 2021 Apr 15; 93 (4): 369-375.

    AimTo determine the features of visualization of papillar thyroid cancer (PTC) in presence of autoimmune thyroiditis (AIT) according to sonoelastography data.Materials And Methods155 patients were examined (75 PTC, 30 AIT, 20 PTC in presence of AIT and 30 with diffuse parenchymal changes) and 30 patients of the control group. Among patients with PTC 68 (90.7%) were represented by female (mean age 46.713.12 years) and 7 (9.3%) by male (average age 48.14.05 years) patients, PTC in presence of AIT by 19 female (average age 46.916.98 years) and 1 male (22 years) patients. Ultrasound investigation was performed with devices Toshiba Aplio-400 and Toshiba Aplio-500 (Japan) by the standard method and using elastography. A surface transducer with a frequency of 1014 MHz was used. An analysis of the thyroid ultrasound image was performed in correspondence with TI-RADS. For a qualitative assessment of the elastographic picture of thyroid foci, the TsukubaUeno assessment visual standardized system was implemented.ResultsAccording to the TI-RADS scale, most nodular formations are assigned to category 4. With TPC with an unchanged thyroid gland, category 4 was determined in 52 patients (69.3%), and with PR in presence of AIT 15 patients (75%). When determining the qualitative criteria for Tsukuba Ueno, the majority of tumors were assigned to types 3b and 4: cancers in presence of AIT 95% and cancers with no changes to thyroid gland 81.3%. Sonoelastographic criteria for thyroid parenchyma with AIT with a high degree of confidence are significantly higher than in the control group (p0.000). In a comparative analysis of thyroid sonoelastography in PTC with unchanged parenchyma and AIT, changes according to compression elastography are statistically unreliable. In shear wave elastography, sonoelastographic criteria for PTC are significantly higher in patients with AIT (p0.02 when measured in kPa, p0.01 when measured in m/s).ConclusionSonoelastography data can be used as additional criteria in the differential diagnosis of focal thyroid formations.

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