Normal intracranial translucency values during first trimester gestation in regional south Indian population: cross sectional study. Background: Pregnancy is associated with a plethora of changes, which has to be monitored regularly with diagnostics like ultrasound, however the shortcomings of US requires alternatives such as intracranial translucency to detect anatomic malformations in the fetus.  Estimate the normal reference values of intracranial translucency in the first trimester screening of low risk singleton pregnancy using ultrasonography  Assess the relation between intracranial translucency & Crown rump length  Assess the relation between intracranial translucency and Nuchal translucency Materials and methods: Study was carried out amongst 117 pregnant females between 18-45 years who came for First trimester aneuploidy screening attending MGMCRI, Puducherry. Results:The maximum no of pregnant women <25 years (47.9%). The mean gestational age was 12.36 weeks {12-12.6 weeks (69.2%)}. The mean crown rump length, intra-cranial translucency and nuchal translucency, wherein the recorded mean values were found to be 6.36, 1.56 & 1.60 respectively. At 11 to 14 weeks of Gestation, the IT was 1.1to 2.5 mm & the CRL increased from 51 to 80 mm with the mean NT values increasing from 1.16 to 2.2. Conclusion:Our study made it evident that Intracranial Translucency can be easily measured while scanning for NT, which is backed by the positive correlation between the IT measurements against the gestational week and CRL length, with a linear advancement & there exists a positive correlation between NT & CRL, amongst normal singleton pregnancies of south Indian population. Hence, intracranial translucency can be used as an early assessment tool for the diagnosis of any malformations associated with the fetus.

Background: To determine any difference between the efficacy of water excitation sequence in comparison with fat suppression sequence in evaluating knee cartilage. Materials and Methods: This prospective study was conducted for a period of two years from January 2021 to June 2022 in Department of Radiodiagnosis, Mahatma Gandhi Medical College and Research Institute, Pondicherry.Results: In this prospective study carried out on 40 persons who came for MRI knee, the inter-observer agreement for cartilage visibility was same and found to be better in both the sequences. The inter-observer agreement for cartilage pathology was found to be same for MFC, LFC and MTP in both the sequences. However, the inter-observer agreement for cartilage pathology over Patella, Trochlea and LTP was found to be better in 3D water excitation sequence than 2D fat suppression sequence. Conclusion:We observe a significant improvement in the inter-observer agreement when evaluating knee cartilage using 3D-WATS sequences than using conventional 2D PD SE sequences.

Title: Diagnostic accuracy of shear wave elastography in evaluation of solid breast lesions & its correlation with histopathology. Background: To assess role of shear wave elastography in diagnosis of solid breast lesions with histopathological correlation. Materials and Methods: This cross-sectional analytical study was conducted in 50 patients from

Introduction: Paget's disease is an uncommon metabolic skeletal disorder characterized by increased osteoclast-mediated bone resorption & compensatory excessive osteoblastic activation. It is often an incidental finding & can also rarely co-exist with other disorders like ankylosing spondylitis. Materials & Methods: Observational type of case study using computed tomography (CT) and X-Ray. 80 years old male came with complaints of giddiness & fall & decreased speech output. CT scans showed intraventricular hemorrhage & patient was treated for the same. However, CT scans revealed features suggesting Paget's disease with co-existing ankylosing spondylitis & a bone survey for whole body was done. Increased S. Alkaline Phosphatase (187 U/L) & low Calcium (7.5 mg/dl) was noted. Results: CT Brain showed mixed lytic sclerotic changes with widened diploic space & coarse trabeculae involving calvarium fully giving a cotton wool appearance. Spine imaging revealed, picture framing of some vertebrae, anterior & lateral syndesmophytic fusion giving a bamboo spine appearance & diffuse osteopenia with multiple sclerotic areas. X-Ray pelvis showed of Kohler tear drop & sclerosis with near complete fusion of bilateral sacroiliac joints. Conclusion: Paget disease of bone shows an abundance of patterns on imaging that are related to pathologic stage of disease. Recognition of imaging spectrum usually allows early diagnosis & differentiation of its complications, which helps guide therapy & improve patient management.

Background: This study aims to evaluate the accuracy of ultra-low-dose CT in detecting COVID 19 related chest findings in COVID 19 suspected patients. Materials and Methods: 106 COVID 19 infection suspected patients who are referred for HRCT chest screening, were evaluated by CT using 128 slice CT scanner (Wipro GE Optima 660). Ultra low dose CT with kv 120 & mA 10 was used. The Ground glass opacities and consolidations will be assessed in every lobe and the severity and grading will be done. CT severity score -in this both lungs are divided into five lobes, and each lobe was assessed individually. Each lobe could be awarded a CT score from 0 to 5, depending on the percentage of the involved lobe. All the values of each lobe is added and graded as mild (0-8), moderate (8-15) and severe (15-25). Then we will correlate the ultra low dose CT findings with RT-PCR results. Results: Among the study population with RT-PCR positive, 67 (85.9%) of them ground glass opacity was present and 11 (14.1%) of them absent. The difference in proportion of Ground glass opacity between RT-PCR was statistically significant (p value <0.001). Conclusion: It was observed that the ULD-CT images could detect Covid 19 related lung lesions in patients with suspected Covid 19 infection. Routine chest CT protocol can be replaced by ULD-CT with significant dose reduction, to detect lung lesions for COVID-19 diagnosis and follow-up. ULD-CT plays a pivotal role in assisting physicians in the management plan & works as an indicator for disease severity & possible outcome.