Publications by authors named "Rajiv Azad"

Background: Diffusion-weighted imaging (DWI) has come up as a newer diagnostic modality for the diagnosis of early functional changes in various organs including the pancreas. DWI has shown the ability of early and accurate diagnosis of inflammatory pathologies, before the appearance of morphological changes on imaging.

Objectives: The objectives of this study were to study the diagnostic accuracy of DWI in the diagnosis of early acute interstitial pancreatitis.

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To study and analyse the variations in ethmoid roof anatomy and estimate the anatomical location and variations of AEA on CT scans. The study is conducted on 200 patients for detailed analysis of the olfactory fossa (OF) depth, supraorbital pneumatisation, and AEA location and distance from the skull base. In our study, Keros type II was predominant type seen followed by type I.

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Introduction: Nephron-sparing surgery (NSS) is the standard of care for renal tumors, especially in the early stages. RENAL Nephrometry scores provide a comprehensive presurgical predictive module for the choice of NSS or Radical Nephrectomy. The validity and reliability of Nephrometry scores is being tested continuously with advancement in the surgical techniques.

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Introduction: Arteriovenous fistulas (AVFs) are the preferred route of hemodialysis in end-stage renal disease. However, recurrent patency loss is an obstacle in long-term maintenance. Endovascular treatments may provide a durable option for prolongation of patency in AVFs.

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Background: The corona virus disease (COVID-19) pandemic has caused widespread effect on the lives of health care professionals. The postgraduate medical students, who are the major pillars of medical institutions had to bear multitude of setbacks due to the pandemic involving academic, research and well-being issues.

Materials And Methods: This was a cross sectional feedback based online survey done in the month of October 2021 to study the effect of COVID-19 pandemic induced changes in the postgraduate medical education; amongst 78 students pursuing MD/MS degree in all departments of a tertiary medical institute in Himalayan foothills of North India.

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Introduction: Vaccination against the global pandemic coronavirus disease 2019 (COVID-19) is a promising way out of the havoc caused by the disease. The clinico-radiological profile of COVID-19 patients in relation to the vaccination status is depicted in the present study.

Materials And Methods: This is a retrospective observational imaging and hospital data-based study performed on 214 confirmed and clinically suspicious patients of COVID-19 who underwent high-resolution computed tomography (HRCT) scan of the thorax at the Department of Radio-Diagnosis of a tertiary medical center in the Himalayan foothills.

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Introduction: Spontaneous pneumomediastinum is an uncommon complication of Corona Virus Disease (COVID)-19 presenting mostly in moderate to severe cases.

Materials And Methods: This is a retrospective observational imaging and hospital data-based study done on 15 confirmed patients of COVID-19 who underwent high resolution computed tomography (HRCT) thorax at the Department of Radio-Diagnosis of a tertiary medical center in the Himalayan foothills. The clinico-radiological profile of the study group was assessed and it was aimed at finding the association of pneumomediastinum with the severity of lung changes.

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Aim of this study is to evaluate the effect of craniospinal interventions on cerebrospinal fluid (CSF) flow hydrodynamics and study the correlation of postoperative changes in flow alteration with clinical outcome. Fifty patients who underwent various craniospinal procedures were studied using conventional and phase-contrast magnetic resonance imaging (PCMRI) protocol. CSF flow quantification was performed at cerebral aqueduct, foramen magnum, C2-3, and D12-L1 vertebral levels with site showing maximal alteration of CSF flow dynamics considered as the region of interest.

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Objective: The objective of the study was to evaluate the cerebrospinal fluid (CSF) flow alterations in meningitis using phase-contrast magnetic resonance imaging (PCMRI).

Materials And Methods: Fifty patients with clinically confirmed or strongly suspected infectious meningitis and 20 controls were evaluated with MRI. Quantitative CSF analysis was performed at the level of cerebral aqueduct using cardiac-gated PCMRI.

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Objective: To compare the contrast-enhanced fluid-attenuated inversion recovery (CE-FLAIR), the CE T1-weighted (CE-T1W) sequence with fat suppression (FS) and magnetization transfer (MT) for early detection and characterization of infectious meningitis.

Materials And Methods: Fifty patients and 10 control subjects were evaluated with the CE-FLAIR and the CE-T1W sequences with FS and MT. Qualitative assessment was done by two observers for presence and grading of abnormal leptomeningeal enhancement.

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Introduction: Differentiating calcification from chronic micro-bleeds on imaging may have important clinical implications.

Aim: The present study aimed to evaluate the role and relative advantages of Magnetic Resonance Imaging (MRI) in the detection and differentiation of intracranial calcifications and chronic microbleeds.

Materials And Methods: The retrospective study comprised of 100 patients having either intracranial calcifications or microhaemorrhages selected on the basis of Computerized Tomography (CT) and MRI using predefined criteria.

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Article Synopsis
  • The study aims to compare the effectiveness of two imaging techniques, PCFLAIR and PCT1W with fat suppression, in identifying leptomeningeal and vascular enhancement in patients with meningitis.
  • Qualitative analysis showed that PCFLAIR was significantly more accurate (90.3%) than PCT1W with FS (54.8%), especially in detecting tubercular and pyogenic meningitis.
  • Quantitative results indicated that PCFLAIR provided a clearer distinction between meningeal and vascular enhancement, making it a better tool for the early detection of infectious meningitis.
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Objective: We evaluated the role of screening of the whole spine by sagittal magnetic resonance imaging (MRI) along with MR myelography in early detection and management of occult intrasacral meningocele.

Materials And Methods: A prospective and retrospective analysis of MRI and MR myelography studies of the whole spine over a period of one year was performed.

Results: Thirty cases with sacral meningeal cysts were seen.

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Article Synopsis
  • The study aimed to validate the benefits of two-dimensional (2D) single thick-slice Magnetic Resonance Myelography (MRM) in spinal imaging.
  • 220 patients underwent 2D single thick-slice MRM alongside standard MRI sequences, with diagnostic contributions evaluated using a three-point grading system.
  • Results showed that MRM provided significant additional diagnostic information in 32.7% of spine cases and identified extra-spinal pathologies in 14.1% of patients, suggesting it can be valuable in spinal imaging.
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Pilomyxoid astrocytoma (PMA) is a recently described brain tumor. PMA shares similar features with pilocytic astrocytoma (PA), the most common central nervous system (CNS) tumor in the pediatric population, yet displays subtle histologic differences. We describe a case of PMA in a six-year-old male involving sellar and suprasellar region presenting with failure to thrive and delayed developmental milestones.

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