Computed Tomography or CAT Scans/ct scan


Hi... one year when I got a bad news there was some pain on my back side of my head around my neck. And then whenever I get tensed or fear I get some burning sensation around that area. Now since the last four days I feel like fainting whenever I walk for long period or sit somewhere and yesterday I did a ct scan plain and the results were normal but I still feel like weekness. So my question is ct scan can check the condition of my skull or bone right? I think when I got that bad news one year ago my blood pipe must have broken or got tear. Is that right and what should I do now? I still feel some burning sensation on my backside of my head and I have some problem in breathing too and I feel little dizziness.


If the problem is still persisting then I suggest that you should go

through an MRI scan. Most of the brain material some or the other way

carries protons revealing its internal structure.

The inherent destructive nature of radiation hazards in CT is avoided

with the additional benefit of detailed information of proton-based

materials in this situation. The MR signal is usually capable of

providing the cross-sectional view in any plane providing relatively

better details as compared to the existing stakeholders.  

The positioning or disturbance of blood vessels in the brain may also

be clarified by going through 3D-digital subtraction angiography, if

available and agreed by the dealing neurosurgeon,  where projection

images are taken at regular intervals and the internal details of the

blood vessels may be revealed in 3D giving the required information about the subject.

Please feel free to contact again if you have further queries in this


Best regards,


Computed Tomography or CAT Scans

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Dr. Shahzad Ahmad Qureshi


I can answer questions about transmission computed tomography, simulated annealing-based tomography and binary & continuous genetic algorithms-based tomography. I shall not be able to answer as an expert about MRI, fMRI...


I have an eight year experience as a researcher.

National Institute of Lasers and Optronics, Islamabad, Pakistan.


1. S. A. Qureshi, S. M. Mirza, Nasir M. Rajpoot, Member IEEE, and M. Arif A Novel GA Approach to Tomographic Image Reconstruction, IEEE Trans. Image Processing, Vol. 20, Issue 7, pp. 1977-1990, 2011 (Online ISSN: 1057-7149, DOI: 10.1109/TIP.2011.2107328) ISI index: 4.205, 2011

2. S. A. Qureshi, S. M. Mirza, and M. Arif Hybrid Simulated Annealing Image Reconstruction for Parallel-Ray Transmission Tomography, Inverse Problems in Science and Engineering, Taylor & Francis, Vol. 17, Issue 5, pp. 647-664, 2009 (Online ISSN: 1741–5985, Print ISSN: 1741–5977, DOI: 10.1080/17415970802390085) ISI index: 0.416, 2008

3. S. A. Qureshi, S. M. Mirza, and M. Arif Determination of Optimal Number of Projections and Parametric Sensitivity Analysis of Operators for Parallel-Ray Transmission Tomography using Hybrid Continuous Genetic Algorithm, International Journal of Imaging Systems and Technology, Vol. 17, Issue 1, pp. 10-21, 2007 (Online ISSN: 1098-1098, Print ISSN: 0899-9457, DOI: 10.1002/ima.20093), ISI index: 0.983, 2006

4. S. A. Qureshi, S. M. Mirza, and M. Arif Optimization of Projections for Parallel-Ray Transmission Tomography using Genetic Algorithm, in Wireless Networks, Information Processing and Systems, Vol. 20, Issue 3, pp. 20-39, 2006, Springer Berlin Heidelberg, 2008 (Online ISSN: 1865-0929, Print ISSN: 1865-0937, Online ISBN: 978-3-540-89852-8, Print ISBN: 978-3-540-89853-5, DOI: 10.1007/978-3-540-89853-5_6)


PhD (Computer Science), MS (Nuclear Engg.), MSc (Computer Science), BE (Metallurgical Engg. and Materials Science)

Awards and Honors

• Fellowship for Ph.D. in Computer Science by Higher Education Commission, Islamabad (2004).

• Fellowship for Research Work at the University of Warwick, the United Kingdom during PhD in the Image Processing Group at the Department of Computer Science (2008)

• Fellowship for M.Sc. Nuclear Engineering from Quaid-i-Azam University, Islamabad for the session 1994-96

• University Merit Scholarship by UET, Lahore awarded every year for being declared as the Top Student during BE

• Gold Medalist of BE with HONOURS by UET, Lahore for the session 1988-92

• Secured Bull’s Eye (100% score) in TCP/IP 4.0 and 90% in Networking Essentials and Microsoft Windows NT 4.0 Workstation (MCSE)

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