Dr. Nirmalya Ray

Dr Nirmalya Ray is a Consultant Neuroradiologist and Interventional Neuroradiologist in Kolkata with 15 years of experience, currently practising at Manipal Hospital, EM Bypass.

He holds the Kishor Taori Gold Medal for Best Paper in CT/MRI at IRIA 2019, won the Case of the Day at the American Society of Neuroradiology Annual Meeting in Washington DC, and received Young Practitioner Grants at LINNC Paris and LINNC Asia Singapore, reflecting a nationally and internationally recognised academic and clinical standing in neurovascular intervention.

He consults in English, Hindi, and Bengali.

Area of Expertise

Acute Ischemic Stroke Intervention

Dr Nirmalya manages patients with acute ischemic stroke with advanced endovascular techniques to rapidly restore cerebral blood flow and minimise long-term neurological disability:

• Mechanical thrombectomy for acute ischemic stroke
• Intra-arterial thrombolysis
• Tandem occlusion management in acute stroke
• Acute stroke imaging assessment and triage
• Post-thrombectomy neurological monitoring and follow-up

Cerebral and Spinal Angiography

Patients requiring diagnostic neurovascular imaging are assessed with cerebral and spinal digital subtraction angiography:

• Cerebral digital subtraction angiography (DSA)
• Spinal DSA for vascular malformation evaluation
• Neurovascular anatomy assessment and mapping
• Pre-interventional angiographic planning
• Post-procedural angiographic assessment

Intracranial Aneurysm Management

Patients with cerebral aneurysms are managed with endovascular occlusion techniques:

• Aneurysm coiling for ruptured and unruptured aneurysms
• Flow diverter placement for complex aneurysm management
• Intrasaccular device deployment
• Post-coiling surveillance imaging
• Multidisciplinary neurovascular treatment planning

Carotid and Intracranial Stenting

Patients with carotid, vertebral, and intracranial arterial stenosis are managed with precision endovascular stenting:

• Carotid artery stenting for symptomatic stenosis
• Intracranial stenting for atherosclerotic disease
• Vertebral artery stenting
• Venous sinus stenting for idiopathic intracranial hypertension
• Post-stenting surveillance and antiplatelet management

AVM, AVF, and Embolisation Procedures

Patients with cerebral and spinal vascular malformations and head and neck tumours are managed with targeted embolisation techniques:

• Cerebral arteriovenous malformation embolisation
• Cerebral and spinal arteriovenous fistula embolisation
• Head and neck tumour embolisation
• Middle meningeal artery embolisation for chronic subdural haematoma
• Spinal AVM and AVF embolisation

Interventional Radiology and Peripheral Vascular Interventions

Dr Ray also performs a range of non-neurovascular interventional radiology procedures:

• Endovascular management of vascular injuries
• Percutaneous nephrostomy and ureteric stent procedures
• Peripheral vascular intervention and coil embolisation
• Trauma-related endovascular haemostasis
• Complex interventional radiology case management

Professional Experience

Current Hospital Affiliations

Dr Nirmalya currently consults at:

• Manipal Hospital, EM Bypass, Kolkata

Previous Associations

• Sri Ramachandra Medical College and Research Institute, Assistant Professor

Credentials and Qualifications

• MBBS, Nil Ratan Sircar Medical College, Kolkata (2011)
• MD Radiology, PGIMER, Chandigarh (2016)
• DNB Radiodiagnosis, National Board of Examinations
• DM Neuroimaging and Interventional Radiology, PGIMER, Chandigarh (2019)
• MNAMS, National Academy of Medical Sciences (2019)
• EBIR, European Board of Interventional Radiology (2021)
• EDiINR, European Diploma in Interventional Neuroradiology (2023)
• EDSI, European Diploma in Ischemic Stroke Intervention (2021)

Awards and Recognition

• Kishor Taori Gold Medal for Best Paper in CT/MRI, IRIA 72nd Annual Conference (2019)
• First Prize, Oral Paper Presentation in Neuroradiology Subspecialty, IRIA 72nd Annual Conference (2019)
• First Prize, Poster Presentation, Indian Society of Neuroradiology (ISNR) Conference (2017)
• Winner, Case of the Day Session, American Society of Neuroradiology (ASNR) Annual Meeting, Washington DC (2016)
• Young Practitioner Grant, LINNC Paris (2019)
• Young Practitioner Grant, LINNC Asia, Singapore (2022)

Research and Publications

• Papilloedema: Diffusion Weighted Imaging of Optic Nerve Head, Clinical Radiology (2019)
• Pattern Recognition Approach to Brain MRI in Dengue Fever with Neurological Complications, Neurology India (2020)
• Tandem Occlusion Involving Accessory Middle Cerebral Artery in Acute Ischaemic Stroke, BMJ Case Reports (2020)
• Post-Tracheostomy Vascular Injury to Anomalous Thymic Branch Managed by Endovascular Coiling, Vascular and Endovascular Surgery (2021)
• Removal of Proximally Migrated Double J Ureteric Stent through Percutaneous Nephrostomy in an Infant, Pediatric Urology Case Reports (2020)
• Anomalous V3 Segment Aneurysm Associated with Congenital Atlantoaxial Dislocation, World Neurosurgery (2019)
• Intracranial Germinoma Masquerading as Secondary Granulomatous Hypophysitis, Neuroendocrinology (2019)

Professional Memberships

• European Board of Interventional Radiology (EBIR)
• Life Member, Indian Society of Vascular and Interventional Radiology (ISVIR)
• Life Member, Indian Society of Neuroradiology (ISNR)
• Life Member, Society of Therapeutic Neuro-Intervention (STNI)
• Life Member, World Federation of Interventional and Therapeutic Neuroradiology (WFITN)
• Life Member, European Society of Neuroradiology (ESNR)
• Life Member, European Society of Minimally Invasive Neurological Therapy (ESMINT)
• Life Member, Radiological Society of North America (RSNA)

Book an Appointment with Dr Nirmalya Ray, Neuroradiologist in Kolkata

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