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Thyroid gland volume determination on ultrasound (US) using ellipsoid model method on sagittal plane
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The longitudinal scan of neck ultrasound demonstrates a well-defined hypoechoic solid mass posteroinferior to the left lobe of the thyroid gland
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The ultrasound image of the 18-gauge bipolar RFA needle (arrows) during the RFA procedure for benign thyroid nodules
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Ultrasonography reveals a relatively well-circumscribed thyroid mass on the right lobe (arrow).
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Neck ultrasonography revealing a hypoechoic mass adjacent to the left thyroid lobe;
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Ultrasonography of the thyroid gland showing an enlarged thyroid with heterogenous echotexture
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posterior external thyroidal extension into the upper pole on preoperative ultrasonography (white arrow indicates thyroid cancer)
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Sagittal grey scale ultrasound of the thyroid demonstrates a heterogeneous nodule with predominant cystic component. Calcification was not seen in the ultrasound, probably due to its lower location in the superior mediastinum
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Transverse greyscale ultrasound of the thyroid demonstrates homogenous gland with normal echogenicity and size. No focal lesion or micro-calcifications
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Transverse greyscale ultrasound of the neck demonstrates a left thyroid bed heterogeneous, predominantly hypoechoic irregular lesion with calcifications
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Transverse greyscale and colour Doppler neck ultrasound demonstrate hypoehoic soft tissue in the left thyroid bed.
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Sagittal and transverse greyscale and colour Doppler ultrasound of the neck demonstrate a hypoechoic enlarged right thyroid lobe with small hyperechoic regenerative nodules and marked hypervascularity (white arrows).
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Transverse greyscale ultrasound of the neck demonstrates heterogeneously enlarged thyroid and thickened isthmus, measuring 8.6 mm
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Ultrasonography shows a hypoechoic mass in the thyroid.
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Transverse ultrasound image of thyroid
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Thyroid color ultrasonography showed multiple nodules with high echo high echo thyroid nodule was represented by a red arrow
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Representative images and histology of micro-calcified benign thyroid nodule at conventional ultrasound, SE, and SWE
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Ultrasound of the thyroid showed no abnormal findings
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B Ultrasound. Blue arrow for the low echo tubercle in the thyroid isthmus.
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Ultrasonography guiding FNA of a solid nodule in the left thyroid lobe
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Before thyroid surgery, transverse gray-scale sonograms showed a secondary PTC in the left lobe
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Before thyroid surgery, transverse gray-scale sonograms showed a primary PTC in the right lobe (arrows, 3.6 mm × 4.5 mm × 4.7 mm).
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Transverse and longitudinal gray-scale sonograms showed an oval hypoechoic nodule (arrows, 8.0mm at its largest diameter) in the right postoperative thyroid bed
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Preoperative longitudinal gray-scale sonograms show a primary MTC (arrows, 25.0 mm at its largest diameter) in the right thyroid lobe
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Ultrasonography guiding FNA solid nodule in the left thyroid lobe
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Ultrasonography demonstrated multiple nodules in the thyroid gland.
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Ultrasonography guiding FNA of a solid nodule in the left thyroid lobe
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a) Longitudinal gray-scale sonogram before thyroid surgery showing primary PTC in right lobe (9.6 mm).
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Representative ultrasound features of a solid nodule in the left thyroid lobe of a 43 years old woman. After 12 months of CEUS-FNA, no significant changes in size or ultrasonic feature were found during ultrasonography follow-up
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Ultrasonography of thyroid after procedure showing increased hypoechogenicity and absence of central vascularization
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Pre-ablation ultrasonography with a 3cm on the largest axis predominantly solid thyroid nodule in the right lobe
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Ultrasonography of thyroid after procedure showing absence of central vascularization
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Baseline neck ultrasound showed a solid and hypoechoic 8 mm nodule located behind the right thyroid lobe
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Conventional ultrasound image shows a thyroid nodule with solid portion over 80%
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Conventional ultrasound image shows a thyroid nodule with solid portion over 80%.
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Ultrasonography of the thyroid gland showing rough and mildly low echogenicity in a slightly enlarged thyroid gland without a tumor
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Thyroid ultrasonography showing diffuse, bilateral involvement with multiple hyper- and hypoechoic nodules
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Thyroid ultrasonography. Thyroid ultrasonography revealed diffuse swelling of the thyroid gland and abundant blood flow
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Thyroid ultrasonography. Thyroid ultrasonography revealed diffuse swelling of the thyroid gland and abundant blood flow
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Lateral axial ultrasound neck image at the upper pole of thyroid (C6 vertebral level). (1) Middle scalene, (2) C5 nerve root, (3) C6 nerve root, (4) anterior scalene, (5) sternocleidomastoid, (6) carotid artery, (7) thyroid, (8) longus colli, (9) posterior tubercle of C6, (10) anterior tubercle of C6 (carotid tubercle)
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Thyroid ultrasonography showed a large lobulated cystic lesion in the right thyroid lobe and multiples adjacent little cysts in isthmus.
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Thyroid ultrasonography showed a large lobulated cystic lesion in the right thyroid lobe and multiples adjacent little cysts in isthmus.
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Neck ultrasonography. The arrows show two submandibular nodes with thyroid tissue.
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Neck ultrasonography. The arrows show two submandibular nodes with thyroid tissue.
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Ultrasonography of the left lobe. The remaining thyroid gland had an inhomogeneous appearance. There were no tumors in the left gland. Doppler color flow revealed a high vascularity in the remaining thyroid gland.
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Ultrasonography of the left lobe. The remaining thyroid gland had an inhomogeneous appearance. There were no tumors in the left gland. Doppler color flow revealed a high vascularity in the remaining thyroid gland.
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Ultrasonographic image of cystic lesionin left lobe of thyroid gland.
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Ultrasonographic image of cystic lesion in left lobe of thyroid gland.
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Watershed segmentation of thyroid ultrasound images
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Watershed segmentation of thyroid ultrasound images
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Watershed segmentation of thyroid ultrasound images
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Watershed segmentation of thyroid ultrasound images
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Cervical ultrasonography. A mass shadow with a 1-cm diameter at a site corresponding to the right inferior pole of the thyroid gland.
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Cervical ultrasonography. A mass shadow with a 1-cm diameter at a site corresponding to the right inferior pole of the thyroid gland.
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Transverse neck ultrasound image at the level of C6 vertebra. (1) Internal jugular vein, (2) common carotid artery, (3) subcutaneous tissue, (4) thyroid gland, and (5) trachea.
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Sonogram showing 3D power Doppler acquisition in the axial plane using 3D power Doppler ultrasound. The power Doppler box was positioned so as to cover the entire thyroid nodule. The widest scanning angle including the whole thyroid nodule was used.
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Sonogram showing 3D power Doppler acquisition in the axial plane using 3D power Doppler ultrasound. The power Doppler box was positioned so as to cover the entire thyroid nodule. The widest scanning angle including the whole thyroid nodule was used.
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Sonogram showing 3D power Doppler acquisition in the axial plane using 3D power Doppler ultrasound. The power Doppler box was positioned so as to cover the entire thyroid nodule. The widest scanning angle (29°) including the whole thyroid nodule was used.
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Sonogram showing 3D power Doppler acquisition in the axial plane using 3D power Doppler ultrasound. The power Doppler box was positioned so as to cover the entire thyroid nodule. The widest scanning angle (29°) including the whole thyroid nodule was used.
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Boundary of the thyroid isthmus on ultrasonography (US). The lateral border of the isthmus is defined by two imaginary lines on transverse US images perpendicular to the skin surface from the most lateral tracheal wall. Thyroid nodules are classified as being of isthmic or lobar origin according to the location of its larger portion.
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Boundary of the thyroid isthmus on ultrasonography (US). The lateral border of the isthmus is defined by two imaginary lines on transverse US images perpendicular to the skin surface from the most lateral tracheal wall. Thyroid nodules are classified as being of isthmic or lobar origin according to the location of its larger portion.
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The last thyroid sonography
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Ultrasonography showed the left thyroid lobe was swelling with multiple funicular hypoechoic lesions
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Thyroid ultrasonography findings. Hypoechoic regions are scattered throughout the thyroid gland. No increase in blood flow in the thyroid gland was observed
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Thyroid ultrasonography findings. Hypoechoic regions are scattered throughout the thyroid gland. No increase in blood flow in the thyroid gland was observed
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Carotid Artery DiameterThe carotid artery vessel diameter was measured in transverse at the height of the thyroid gland or 3 cm below the carotid bulb if no thyroid gland were present. Pulse wave Doppler measurements were obtained at this same location. The diameter was transferred to the longitudinal image to allow the ultrasound machine to calculate the area and flow volume.
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Ultrasonography image of the thyroid reveals a suspicious hypoechoic nodule with irregular border seen at the left thyroid lobe measuring 16.4 × 13.0 mm in diameter, outlined by “+”. Speckles of microcalcification are seen at the periphery. C = carotid artery, LT = left, IJV = internal jugular vein, T = trachea.
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Ultrasonography of the thyroid gland with visualization of heterogenous nodule in the left lobe.
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Thyroid microcarcinoma was discovered by screening with ultrasonography.
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B-mode ultrasound of the right lobe of thyroid gland using the S2000, 9L4 probe at 9 MHz with the ROI placed within the healthy thyroid tissue measuring an ARFI velocity of 1.90 m/s.
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Ultrasonographic findings. Thyroid ultrasonogram demonstrates a 4.6 cystic dominant nodule in the lower portion of the right thyroid lobe and atrophy of the contralateral lobe.
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An ultrasonogram showing enlargement and increased blood flow of the thyroid gland
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An ultrasonogram showing enlargement and increased blood flow of the thyroid gland
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A representative ultrasonographic image. A well-demarcated lobular low-echoic lesion with diffuse short linear high-echoic spots inside in the thyroid was revealed by ultrasonography.
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An ultrasonogram showing enlargement and increased blood flow of the thyroid gland
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Thyroid ultrasonography showing a left 5 cm solid and isohypoechoic nodule with peripheral and intranodular vascularization.
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An ultrasonogram showing enlargement and increased blood flow of the thyroid gland
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Ultrasonography of the cervical region in an asymptomatic child. Observe the right thyroid lobe (between markers) with preserved echotexture and dimensions.
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Ultrasonography of cervical region. On this image, the thyroid is hyperechogenic and presents with reduced dimensions (between markers).
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Ultrasonography of cervical region. In this case, the thyroid gland (arrows indicating the right and left lobes) presents with much reduced dimensions and increased echogenicity.
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Ultrasonography of cervical region. In this child, the thyroid gland could not be identified. ACCD, right common carotid artery; ACCE, left common carotid artery.
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An ultrasonogram showing enlargement and increased blood flow of the thyroid gland
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Thyroid ultrasonography image of right thyroid lobe
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A 12mm mass is seen in the right lower thyroid lobe with ultrasonography.
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An ultrasonography (US) image of a left thyroid nodule in a 77-year-old woman who was confirmed with cancer in the right thyroid gland. A 1-cm sized isoechoic nodule with internal echogenic spots was seen (arrows). Four radiologists (1 faculty, 1 fellow, and two residents) interpreted the nodule as cancer. In contrast, 3 CNN-combinations interpreted it as benign. The nodule was diagnosed as adenomatous hyperplasia.
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Ultrasonography of the thyroid. The left lobe is heterogeneously enlarged with hypoechoic areas and calcifications
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Ultrasonography of the thyroid. A mass with a calcification and an acoustic shadow is observed in the thyroid
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Ultrasonography image showing the fish bone in the left lobe of the thyroid gland surrounded by an abscess
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Clinical case 3. Ultrasound image of a nodule at the level of the right thyroid lobe of 21x13 mm, with internal calcifications.
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Transverse sonographic image of the thyroid gland. In the left thyroid lobe, there is a hypoechoic, well-demarked lesion. Macrocalcifications are ventral and in the middle of the cyst.
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Ultrasonography of the thyroid gland revealing left lobe of 3.6 x 2.0 cm in size with a large heterogeneous, predominantly cystic, nodule measuring about 7.5 x 2.4 cm in the longest dimensions
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Ultrasonography showed a right thyroid mass
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Thyroid ultrasonography, longitudinal view: enlarged, heterogeneous right thyroid lobe measuring 7.2cm x 2.49cm
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Thyroid doppler ultrasonography, longitudinal view: increased asymmetric vascularity in the right thyroid lobe indicative of Hashimoto thyroiditis
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An example of a solid markedly hypoechoic thyroid nodule that was diagnosed as false positive.The nodule was also taller than wide with echogenic foci. The impression of these suspicious sonographic features led to the misdiagnosis by the different TIRADS within the AmCAD-UT software. The nodule was diagnosed as benign with cytology.
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The first thyroid sonography
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Thyroid ultrasonography of a 13-year-old girl with Hashimoto's thyroiditis. Enlarged, lobulated, diffusely contoured thyroid lobes with many scattered microcalcifications are evident.
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Thyroid ultrasonography of an 18-year-old girl with Hashimoto's thyroiditis. An oval poorly defined hypoechoic solid nodule containing internal microcalcifications which is 2.7cm in diameter is evident in the right thyroid gland.
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Ultrasonography of thyroid.
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Ultrasonography of the neck showed absence of thyroid tissue
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