Ultrasonographic and elastographic biometry in adult major salivary glands: a preliminary case-control report

Abstract

Specifications about the size and stiffness of healthy salivary glands with ultrasound (US) are not available for Asian people. Using a Toshiba Apolio 500 US platform, we determined the size (including anterior-posterior median length, median paramandibular depth dimension, and cranio-caudal height) and hardness of 100 healthy submandibular and parotid glands in volunteers without a history of disease affecting the salivary glands or post-radiation, and compared the dimensions to those of 36 parotid glands and 37 submandibular glands in post-irradiated patients. The dimensions of the parotid and submandibular glands were significantly correlated with body weight. However, the dimension of the parotid glands was not significantly correlated with that of patients with prior radiation; the shear wave velocity (SWV) significantly increased (1.99 m/s versus 2.43 m/s, p-value < 0.01). The dimension of the submandibular glands was significantly correlated with prior radiation, where the SWV also significantly increased (2.32 m/s versus 2.50 m/s, p-values < 0.01). We find that US is a useful tool for assessment of the reference dimensions and hardness of major salivary glands that may be altered by irradiation.

EANM dosimetry committee recommendations for dosimetry of 177Lu-labelled somatostatin-receptor- and PSMA-targeting ligands

“…The total mass of the three pairs of salivary glands is for the ICRP 110 reference adult male 85 g [ 182 ]. However, a large inter-patient variation in the salivary gland volume has been observed [ 183 , 184 ].…”

Efficacy of photobiomodulation therapy combined with mobile health education in patients with head and neck cancer suffering from chronic xerostomia after radiotherapy: protocol for a three-arm, randomised, placebo-controlled, double-blinded study

“…The morphology of the parotid and submandibular glands will be assessed using two-dimensional echography (Samsung HM70A echograph) to quantify changes in size in three dimensions. 58 The ultrasound parameters will be adjusted according to the glandular ultrasound image of each patient and maintained throughout the follow-up.…”

Avaliação das doses em tecidos durante radiografia interproximal: estudo por simulação de Monte Carlo

“…As glândulas submandibulares foram representadas com 2,3 cm de largura, 3,5 cm de altura e 1,7 cm de profundidade. E a última, a sublingual, com 1,4 cm de largura, 2,5 cm de altura e 0,5 cm de profundidade (12), como mostra a figura 3. Nos olhos foram retratadas as estruturas do humor vítreo, humor aquoso, lente (cristalino), esclera e córnea, como mostra a figura 4.…”