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Background: The thyroid gland is located in the anterior part of neck, spanning between C5 and T1 vertebra and is located anterior to the thyroid and cricoids cartilage of larynx and first three tracheal rings. Ultrasonography has been widely used for diagnosis of thyroid disease it is highly regarded for its ease of use, real-time capability, portability and low cost.Methods: The current observational study was conducted in Department of Radiology, Dr. BRAM Hospital, Pt. JNM Medical College, Raipur, India. Consecutive sampling method was used for the study. All the cases coming to radiology department during the study period were taken as study subjects.Results: Of the normal subjects, author found 107 normal thyroid subjects and 53 patients were categorized into cases with diffuse non-nodular thyroid swelling groups. Of the diffuse thyroid swelling group about 85% of the study population is between 20-50 years of age group, 13.2% were <20 years of age and one patient is >50 years of age. Females to male ratio for diffuse thyroid disease is 3.4:1.Conclusions: Ultrasound elastography (USE) is a newly developed non-invasive method to evaluate and compare the elasticity of the thyroid gland and other organs like liver, prostate, parotid, breast pathologies. Its use is based on the principle that pathological changes in a tissue also changes its elasticity.
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context: Cerebral venous sinus thrombosis (CVST) previously believed to be an uncommon cerebrovascular event, accounting for0.5–1% of cases of stroke, affecting 1.32/100,000 person/year. CVST is a disease of young adults (<50 years old) predominantlyand is diagnosed based on clinical suspicion with confirmatory neuroimaging.Aims: This study aims to prospectively evaluate the Hounsfield unit (H.U) value of cerebral venous sinus on non-contrastcomputerized tomography (NCCT) scan and to assess its predictive value in diagnosing cerebral venous thrombosis and toevaluate whether standardizing venous sinus H.U value measurements to those of the corresponding internal cerebral arterywould improve diagnostic accuracy.Materials and Methods: In our study, a total of 80 clinically suspected case of CVST were included and NCCT head scan was donethen confirmed by M.R. venography (gold standard). Of 80 cases, a total of 38 cases were diagnosed as CVST on M.R. venographywhich was considered as Group B and rest 42 cases were normal on M.R. venography which was considered as Group A.Statistical Analysis: Average HU and H:H ratio were compared using two-tailed t-test, and linear regression analysis wasused to assess correlation between hematocrit (HCT) and HU.Results: Linear regression analysis showed positive correlation between HCT with computed tomography attenuation (HU)among both the groups (P < 0.005). H:H ratio (HU/HCT) for cutoff point of 1.645 had sensitivity of 71.1%, 97.6% specificity,and 96.4% PPV. A cutoff value of 1.335 for standardized measurement with internal carotid arteries (ICA) had 71.1% sensitivity,81% specificity, and 77.1% PPV.Conclusion: We conclude that average HU, H:H ratio, and standardized with ICA were the best predictor for sinus thrombosis.