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Indexing hs code- a hybrid indexer for an optimized search of geotagged data
Bhagwant Singh,Kingshuk Srivastava,D. K. Gupta,Tanupriya Choudhury,Jung‑Sup Um 대한공간정보학회 2023 Spatial Information Research Vol.31 No.1
In case of unstructured data processing current technologies have developed a lot of solutions to process and provide insight into it, which has become paramount today due to the permeation of social media. Social media analytics extract data points by searching the most relevant textual reference and isolating textual data with location information. This increase the complexity of modern social media search engines. The indexer is imperative towards the performance of these engines. Geotagged data generated via modern social media technologies has augmented the need to enhance such search mechanisms designed for spatial data.Conventional spatial indexers designed to handle such data can accurately search spatial objects but with a considerable increase in seek time. This paper presents a hybrid spatial indexer based on “Hs-I” tree for the “Social Media Spatial Analytical (SMSA)” model. The purposed indexer is 17.768% faster when compared with the “Geo-hash” indexer. The model refers “CBDFI” model for base architecture and deploys the advantage of the “hs” code. The paper presents the comparison of the purposed indexer with various other spatial indexers and highlights its key points in terms of execution time.
18F-FDG PET/CT detects Metastatic Renal Cell Carcinoma Masquerading as Primary Breast Malignancy
Ashwin Singh Parihar,Bhagwant Rai Mittal,Shelvin Kumar Vadi,Rajender Kumar,Kaniyappan Nambiyar,Bishan Radotra,Lileswar Kaman 대한핵의학회 2018 핵의학 분자영상 Vol.52 No.6
We present the case of a 36-year-old woman who underwent 18F-FDG PET/CT with suspicion of a primary breast malignancy. However, PET/CT detected an occult renal cell carcinoma with metastases to the thyroid, breast, lungs and lymph nodes. Thyroidand breast metastases are atypical metastatic sites of renal cell carcinoma. Breast metastases from extra mammary tissue areextremely rare, more so from renal cell carcinoma. Histopathologic confirmation of the breast lesions is imperative to avoidunnecessary mastectomy and imaging can help in raising the suspicion of metastatic involvement versus primary breastmalignancy.
Groove Pancreatitis Masquerading as Pancreatic Carcinoma—Detected on 18F-FDG PET/CT
Ashwin Singh Parihar,Bhagwant Rai Mittal,Shelvin Kumar Vadi,Apurva Sood,Rajender Kumar,Usha Dutta 대한핵의학회 2018 핵의학 분자영상 Vol.52 No.6
Groove pancreatitis is a rare form of chronic pancreatitis that affects the groove area adjacent to the second part of the duodenum. Clinical and biochemical features often overlap with other subsets of chronic pancreatitis, while the imaging features resemblethat of carcinoma of the head of pancreas. We present a 38-year-old man with abdominal pain, nausea, vomiting, and loss ofweight who underwent 18F-FDG PET/CT to rule out a pancreatic malignancy. PET/CT imaging features of groove pancreatitisare distinct from the other subsets of chronic pancreatitis, such as alcoholic and autoimmune pancreatitis, and helpful in thediagnosis and planning further management of the patient.
Jain Tarun Kumar,Singh Harmandeep,Kumar Rajender,Bal Amanjit,Sood Ashwani,Mittal Bhagwant Rai 대한핵의학회 2020 핵의학 분자영상 Vol.54 No.5
Pulmonary blastoma (PB) is a rare thoracic malignancy and preoperative diagnosis is challenging. A young man presented with dyspnea and chest pain for 3–4 months and chest-computed tomography (CT) revealed large mass in the left lung upper lobe and pleural effusion. Repeated CT-guided fine-needle aspiration cytology from the lesion and pleural fluid aspiration was negative for malignancy. F-18-fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET-CT) revealed heterogeneous tracer avidity in left lung mass with areas of necrosis. Real-time PET-CT-guided biopsy from metabolically active component of the lesion revealed biphasic PB on histopathology.
Kashyap, Raghava,Mittal, Bhagwant Rai,Chakraborty, Dhritiman,Bhattacharya, Anish,Singh, Baljinder The Korea Society of Nuclear Medicine 2010 핵의학 분자영상 Vol.44 No.4
We present a case of poorly differentiated muscle invasive transitional cell carcinoma in a 64-year-old male diagnosed with FDG-avid mass in the urinary bladder wall and multiple skeletal muscles visualised on F-18 FDG PET/CT.
Thanseer, N.T.K.,Bhadada, Sanjay Kumar,Sood, Ashwani,Parihar, Ashwin Singh,Dahiya, Divya,Singh, Priyanka,Basher, Rajender Kumar,Das, Ashim,Mittal, Bhagwant R. 대한핵의학회 2018 핵의학 분자영상 Vol.52 No.2
$^{18}F$-Fluorocholine (FCH) PET/CT is evolving as a functional imaging modality for the preoperative imaging of abnormal parathyroid tissue(s) helping to localize eutopic and ectopic parathyroid tissue and limit the extent of surgery. FCH PET/CT may show incidental uptake in various thyroid lesions necessitating further evaluation, whereas the role of $^{18}F$-fluorodeoxyglucose (FDG) PET/CT in the detection of incidental thyroid nodules is well documented. The case of a middle-aged woman with dual pathology of parathyroid adenoma and papillary thyroid cancer detected on FCH and FDG PET/CT is presented.