Neuroradiology Expert Witness – Dr Nayyar Saleem
Consultant Diagnostic & Interventional Neuroradiologist

Dr Nayyar Saleem is a Consultant Diagnostic and Interventional Neuroradiologist with specialist expertise in the investigation, diagnosis and endovascular treatment of complex neurological and neurovascular conditions.

He accepts medico-legal instructions in cases requiring expert opinion on diagnostic and interventional neuroradiology, including the interpretation of cranial and spinal imaging and the appropriateness, timing and outcome of neurointerventional procedures.

His medico-legal expertise includes acute ischaemic stroke and mechanical thrombectomy; intracranial aneurysms; subarachnoid and other intracranial haemorrhage; cerebral and cervical arterial dissections; carotid and vertebral artery disease; arteriovenous malformations and dural arteriovenous fistulae; embolisation procedures; angioplasty and stenting; and other complex cerebrovascular and neurovascular conditions. His expertise also encompasses spinal angiography and vascular interventions, together with the interpretation of CT, MRI and angiographic imaging.

Dr Saleem has particular clinical and academic experience in the endovascular management of intracranial aneurysms and acute ischaemic stroke. His extensive experience of modern neurointerventional techniques, combined with his research into aneurysm treatment, stroke and advanced neurovascular imaging, enables him to provide expert opinion informed by current specialist practice and the developing evidence base.

His medico-legal opinions may address issues concerning diagnosis and imaging interpretation, the selection and timing of investigations or intervention, technical aspects of neurointerventional treatment, complications and outcomes, and the clinical management of neurological and neurovascular disease where these fall within his area of expertise.

Dr Saleem is a Consultant Interventional Neuroradiologist at Leeds Teaching Hospitals NHS Trust; a position held since September 2017. His clinical practice focuses on minimally invasive, endovascular techniques to treat a range of complex neurovascular conditions.

Dr Saleem is highly experienced in the endovascular treatment of intracranial aneurysms and arterial dissections, utilizing modern devices and techniques. He also performs endovascular procedures for intracranial dural-fistulae and Arteriovenous Malformations (AVMs). Dr Saleem has significant expertise in the mechanical thrombectomy (MT) for acute ischaemic stroke, as well as angioplasty and stenting of the carotid and vertebral arteries, and venous sinus stenting. His practice extends to include embolisation procedures for intracranial tumours, middle meningeal arteries, and external carotid arteries (nasal/facial).

Dr Saleem’s skills also encompass spinal interventions, including spinal angiography and endovascular treatment of spinal arteriovenous shunts and CSF venous fistulae, alongside vertebral tumour embolisation. He is proficient in the interpretation of both cranial and spinal imaging studies, including CT, MRI, and angiography.

Dr Saleem’s clinical interests lie in the field of neurointerventional radiology, with a particular focus on utilising endovascular techniques for the treatment of complex cerebrovascular conditions. He has a strong interest in applying these minimally invasive approaches to brain aneurysms, striving to optimise patient outcomes and quality of life. He is also dedicated to advancing the treatment of stroke and other neurovascular abnormalities through innovative techniques and collaborative research.

Dr Saleem currently serves as the Clinical Lead for the Neuro-intervention Service at Leeds Teaching Hospitals NHS Trust. In this role, he provides strategic and operational leadership for the multidisciplinary team, ensuring the delivery of high-quality, safe, and efficient neurointerventional care. His responsibilities include service development, resource allocation, training and supervision of junior colleagues, audit and governance.

Dr Saleem’s research interests center on improving outcomes in neurointerventional radiology. He is actively involved in research evaluating and optimising endovascular techniques for the treatment of brain aneurysms, with a focus on long-term efficacy and minimising complications. His broader research portfolio encompasses investigations into novel approaches to stroke treatment and the application of advanced imaging techniques to improve neurovascular interventions.

Dr Saleem has a robust publication record demonstrating his commitment to advancing the field of neurointerventional radiology. His research focuses on the endovascular treatment of complex cerebrovascular conditions, particularly intracranial aneurysms. Several publications, including work on the use of devices like the Contour (Islim et al., 2025) and Woven Endobridge (Moughal et al., 2024), detail his experience and contribute to the understanding of optimal treatment strategies for wide-neck aneurysms. He has published extensively on techniques such as stent-assisted coiling (Nejadhamzeeigilani et al., 2023; Islim et al., 2024) and intrasaccular treatment approaches (Islim et al., 2023). Beyond aneurysm management, Dr. SX’s publications cover a diverse range of neurovascular topics, including dural arteriovenous fistulae (Kular et al., 2022), hypertensive posterior reversible encephalopathy syndrome (Moughal et al., 2023), and traumatic brain injury (Currie et al., 2016). His research extends to imaging modalities in vascular neurosurgery (Bautista et al., 2020) and general diagnostic radiology (Vaidyanathan et al., 2016), showcasing a broad understanding of neurovascular disease and its management. A full list of his publications is available upon request.

Dr Saleem is an Honorary Senior Lecturer at the University of Leeds Medical School and a Teacher/Trainer at the Leeds Radiology Academy. He is dedicated to medical education and the training of future healthcare professionals in radiology and neurointerventional techniques.