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Full-Text Articles in Medicine and Health Sciences
Mr Perfusion Imaging, Techniques And Role In Differentiating Radiation Necrosis And Tumor Recurrence, Raima Zakaria, Fatima Mubarak, Muhammad Shahzad Shamim
Mr Perfusion Imaging, Techniques And Role In Differentiating Radiation Necrosis And Tumor Recurrence, Raima Zakaria, Fatima Mubarak, Muhammad Shahzad Shamim
Department of Radiology
High grade brain tumours are treated with surgery, chemotherapy and radiation therapy and despite such aggressive treatment, can recur in a short span of time. MRI scan has been the conventional diagnostic modality to diagnose recurrence, although at times it becomes difficult for the neuroradiologists to differentiate between tumour recurrence and radiation necrosis. Herein lies the emergent need to explore the efficacy of functional imaging to assist in this diagnostic challenge. Recent studies have sought to do so with promising implications, which we have attempted to summarize in this review.
Magnetic Resonance Spectroscopy Of Enhancing Cerebral Lesions: Analysis Of 78 Histopathology Proven Cases, Muhammad Shahbaz Alam, Humera Ahsan, Zafar Sajjad, Madiha Beg, Umer Bhatti, Ather Enam, Mohammad Wasay
Magnetic Resonance Spectroscopy Of Enhancing Cerebral Lesions: Analysis Of 78 Histopathology Proven Cases, Muhammad Shahbaz Alam, Humera Ahsan, Zafar Sajjad, Madiha Beg, Umer Bhatti, Ather Enam, Mohammad Wasay
Department of Radiology
Objectives: To investigate the efficacy of magnetic resonance spectroscopy in differentiating various types of neoplastic and non-neoplastic enhancing cerebral lesions.
Methods: The prospective study was conducted from January 2007 to December 2009 at the Department of Radiology, Aga Khan University Hospital, Karachi. All patients with enhancing brain lesions on magnetic resonance imaging who underwent magnetic resonance spectroscopy and a biopsy with histopathological analysis were included in study. The lesions were categorised into neoplastic and non-neoplastic lesions on the basis of spectroscopy findings. The sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of magnetic resonance spectroscopy were calculated. …