Know Your Images

18 posts · 7,493 views

Know Your Images
18 posts

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  • January 13, 2014
  • 03:36 PM
  • 326 views

Cristiano Ronaldo - How many times did he undergo an MRI exam?

by Know Your Images in Know Your Images

Cristiano Ronaldo was announced today Ballon d'Or and it made me remember something I read some time ago about football players and their injuries. Most of football players injuries are assessed with medical imaging. Medical Imaging provides information about the extent of the injury (e.g. involvement of tendons) and also information about the recovery. The most important exams are: MRI and Ultrasound. Some clubs even have their own ultrasound machine. However, it is still recognized among exper........ Read more »

Woods C, Hawkins RD, Maltby S, Hulse M, Thomas A, Hodson A, & Football Association Medical Research Programme. (2004) The Football Association Medical Research Programme: an audit of injuries in professional football--analysis of hamstring injuries. British journal of sports medicine, 38(1), 36-41. PMID: 14751943  

  • August 13, 2013
  • 05:16 PM
  • 306 views

Roberts Prize for best paper published in 2012 - PMB

by Know Your Images in Know Your Images

Physics in Medicine and Biology is one of my favorite journals and recently they have awarded the best paper published in 2012: Defrise M, Rezaei A, & Nuyts J (2012). Time-of-flight PET data determine the attenuation sinogram up to a constant. Physics in medicine and biology, 57 (4), 885-99 PMID: 22290428 I have scan through this paper before, since it is actually a topic close to my work. Time-Of-Flight Positron Emission Tomography is one of the great trends of PET imaging and attenuat........ Read more »

  • July 28, 2013
  • 01:00 PM
  • 408 views

MRI safety week

by Know Your Images in Know Your Images

This last week, it was MRI safety week. This event was created to remember the unfortunate death of Michael Columbini, a young boy of 6 years old, caused by a oxygen tank flying in the MRI scanner room. This accident took place in 2001. Even tough everyone working on MRI scanner rooms should know about MRI safety, it is important to renew your knowledge every once in a while. In my institute, MRI safety tests have to be done every 2 years. Major concerns are metal objects, tattoos, wire position........ Read more »

Mary F Dempsey, Barrie Condon, Donald M Hadley. (2002) MRI safety review . Seminars in Ultrasound, CT and MRI. DOI: 10.1016/S0887-2171(02)90010-7  

  • July 22, 2013
  • 04:21 PM
  • 443 views

ERC Starting Grant Winners

by Know Your Images in Know Your Images

ERC awards the most important grants to researchers in Europe. For young researchers (2-7 years after PhD), the ERC has Starting Grants. The goal for these starting grants is for these young researchers to start their own group and line of research. This year results have been published (here) and of course, I checked which of these grants are related to medical imaging. There were 3329 applications and 287 researchers were successful. The ERC grants are divided in three big areas: 1) Physi........ Read more »

Daniela Thorwarth, Susanne-Martina Eschmann, Frank Paulsen, Markus Alber. (2006) Hypoxia Dose Painting by Numbers: A Planning Study . International Journal of Radiation Oncology * Biology * Physics. DOI: 10.1016/j.ijrobp.2006.11.061  

  • July 18, 2013
  • 07:31 AM
  • 353 views

Right Dose Image Contest (by Siemens)

by Know Your Images in Know Your Images

Every year, Siemens organizes a Medical Imaging Contest. The idea is to obtain the best CT image with minimal dose. This contest doesn't focus only on image quality, but also on the dose, which is displayed in top of every image.... Read more »

Mannudeep K. Kalra, MD, DNB, Michael M. Maher, MD, FFR(RCSI), FRCR, Thomas L. Toth, DSc, Leena M. Hamberg, PhD, Michael A. Blake, MRCPI, FRCR, FFR(RCSI), Jo-Anne Shepard, MD and Sanjay Saini, MD. (2004) Strategies for CT Radiation Dose Optimization . Radiology. DOI: 10.1148/radiol.2303021726  

  • July 12, 2013
  • 01:30 AM
  • 300 views

Breast Imaging and Computer Aided Diagnosis

by Know Your Images in Know Your Images

When I started studying biomedical engineering and I learned a lit bit about programming, my ingenuity made me think that one day we could build programs that don't need medical doctors. WRONG! Nevertheless, we can still to provide better algorithms and results to medical doctors which make the hard clinical decisions. One of the most challenging tasks for a doctor is to analyze mammograms to find microcalcifications and evaluate the malignity of a lesion. It takes years of experience to be........ Read more »

Ganesan K, Acharya UR, Chua CK, Min LC, Abraham KT, & Ng KH. (2013) Computer-aided breast cancer detection using mammograms: a review. IEEE reviews in biomedical engineering, 77-98. PMID: 23247864  

  • July 10, 2013
  • 01:41 PM
  • 256 views

PET answers: "Does Cannabis make you lazy?"

by Know Your Images in Know Your Images

PET (Positron Emission Tomography) is the image modality in which I have put most of my sweat and tears, so I am always interested to know the latest findings using this modality. The most recent question PET tries to answer is: "Does Cannabis make you lazy?"To study this, the researchers used "radio-labelled dopamine" ([18F]-DOPA) in a group of cannabis smokers and a group of controls. Dopamine is the chemical in the brain that controls pleasure and motivation (read here). The study f........ Read more »

  • June 10, 2013
  • 05:29 PM
  • 433 views

Are you in pain?

by Know Your Images in Know Your Images

Pain is one of the most difficult things to quantify. The doctor can ask you: How would you classify the pain from 0 to 10, being 10 the most  painful and 0 not painful? and you might answer with a number, but the scale is subjective. So far, there was no method to actually quantify pain. fMRI (functional MRI) might change that.A recent study found a way to predict the pain intensity with fMRI. Basically, several volunteers (I'm not sure how much did this study paid, but I don't see myself ........ Read more »

Wager TD, Atlas LY, Lindquist MA, Roy M, Woo CW, & Kross E. (2013) An fMRI-based neurologic signature of physical pain. The New England journal of medicine, 368(15), 1388-97. PMID: 23574118  

  • June 8, 2013
  • 03:21 PM
  • 557 views

How does a painting look like on X-ray?

by Know Your Images in Know Your Images

The impulse to develop medical imaging comes mainly from two sources: understanding/diagnosing diseases and understanding our body. However, medical imaging technology is sometimes used to study different objects. This post is dedicated to the imaging of one type of these objects: paintings.... Read more »

Schreiner, M., Frühmann, B., Jembrih-Simbürger, D., & Linke, R. (2012) X-rays in art and archaeology: An overview. Powder Diffraction, 19(01), 3-11. DOI: 10.1154/1.1649963  

  • June 7, 2013
  • 12:35 AM
  • 296 views

Dental Imaging - What is happening there?

by Knowyourimages in Know Your Images

The first time I was started thinking about dental imaging from a different point of view was when I heard in a talk the speaker saying: "These are statistics about medical imaging, without dental imaging.". I wondered "Why are dental imaging statistics not included?"... Read more »

  • June 2, 2013
  • 08:58 AM
  • 367 views

Procrastination to find the most cited paper in the field of MRI

by Know Your Images in Know Your Images

I have posted recently about the most cited (important?) papers in Medical Imaging in the last ten/five/two years here. Today I look for the most cited papers in the field of MRI. Interesting to note that these 3 papers were published in Neuroimage.Most cited paper in Radiology, Nuclear Science and Medical Imaging Field about MRI:- of the last 10 years with 1346 citations:Ashburner, J., & Friston, K. (2005). Unified segmentation NeuroImage, 26 (3), 839-851 DOI: 10.1016/j.neuroimage........ Read more »

Ashburner, J., & Friston, K. (2005) Unified segmentation. NeuroImage, 26(3), 839-851. DOI: 10.1016/j.neuroimage.2005.02.018  

Klein, A., Andersson, J., Ardekani, B., Ashburner, J., Avants, B., Chiang, M., Christensen, G., Collins, D., Gee, J., Hellier, P.... (2009) Evaluation of 14 nonlinear deformation algorithms applied to human brain MRI registration. NeuroImage, 46(3), 786-802. DOI: 10.1016/j.neuroimage.2008.12.037  

Smith, S., Miller, K., Salimi-Khorshidi, G., Webster, M., Beckmann, C., Nichols, T., Ramsey, J., & Woolrich, M. (2011) Network modelling methods for FMRI. NeuroImage, 54(2), 875-891. DOI: 10.1016/j.neuroimage.2010.08.063  

  • May 29, 2013
  • 08:13 AM
  • 493 views

Angelina Jolie doesn't trust medical imaging

by Know Your Images in Know Your Images

Angelina Jolie shocked us all with her decision to remove both her breasts in order to prevent breast cancer. Her breast cancer risk was calculated based on genetics and was 87%. Now it is 5%. I have to agree that this woman is brave! However, I think a very intense screening could have been done with very good results. There are several methods to detect breast cancer: (digital) mammography, tomosynthesis, breast MRI, ultrasound, positron emission tomography and even microwave imaging. Some wit........ Read more »

  • May 3, 2013
  • 09:07 AM
  • 423 views

Microwave for breast imaging?

by Know Your Images in Know Your Images

When we hear the word microwave, we immediately think about the heating device we have in our kitchen. But the word microwave just means waves with wavelengths from ranging from 1 meter to 1 millimeter (corresponding frequencies are 300MHz to 300 GHz). Microwave technology has been used in several engineering fields, and biomedical engineering is no exception. Microwave technology is used in the Radio Frequency components for MRI, but it also can be used as an imaging modality of its own. Microw........ Read more »

Fear, E., Meaney, P., & Stuchly, M. (2003) Microwaves for breast cancer detection?. IEEE Potentials, 22(1), 12-18. DOI: 10.1109/MP.2003.1180933  

Nikolova, N. (2011) Microwave Imaging for Breast Cancer. IEEE Microwave Magazine, 12(7), 78-94. DOI: 10.1109/MMM.2011.942702  

  • May 2, 2013
  • 04:38 AM
  • 408 views

Dissecting Art, Intersecting Anatomy - Medical illustration

by Know Your Images in Know Your Images

Pauline Lariviere was an artist whose main contributions were made to the field of medical illustration. As a scientist in the medical field, medical illustrations are essential to education. I have already spent some hours drawing something in the computer for a paper or presentation. In old times, all illustrations were done by hand, but nowadays computers play an important role and medical images are often used as a basis to medical illustrations. Here is an example of a medical illustration ........ Read more »

Corl, F., Garland, M., & Fishman, E. (2000) Role of Computer Technology in Medical Illustration. American Journal of Roentgenology, 175(6), 1519-1524. DOI: 10.2214/ajr.175.6.1751519  

  • April 30, 2013
  • 09:05 AM
  • 719 views

What does the Muse CD cover have to do with Medical Imaging?

by Know Your Images in Know Your Images

This is Muse CD cover of their 6th album: "The 2nd Law":Indeed, this image is truly beautiful and remarkable. It is an image of the white matter fibers in the brain obtained with diffusion MRI (link). The image was obtained by the Human Connectome Project, which is a 5-year project funded by NIH to find the networks of the human brain. These networks will show how our brain communicates between different regions and give insight about the anatomical and functional organization of the brain. The ........ Read more »

  • April 29, 2013
  • 07:42 AM
  • 378 views

CT scans help Anthropology studies

by Know Your Images in Know Your Images

This video has caught my attention few days ago. Field Museum in Chicago has used a CT scan to help them with the face reconstruction of an ancient skull (12,000 to 15,000 year old). The great advantage of using a CT scan is that once you have scanned the skull, you can do the processing and reconstruction of the skull on a computer without having to touch it, which means that the skull is never damaged. The problem here is usually the transport of the skull to the CT scan, which are usually loc........ Read more »

  • April 27, 2013
  • 10:50 AM
  • 407 views

Procrastination to find the most cited papers in Medical Imaging

by Know Your Images in Know Your Images

Few day ago, I was wondering what were the most cited (important?) papers in Medical Imaging in the last ten/five/two years. The problem was that I didn't know exactly how to find this information. I googled a bit around and I found a way and tried it out. I found also some extra information about the subject:Published Papers in Radiology, Nuclear Science and Medical Imaging Field: Citations in Radiology, Nuclear Science and Medical Imaging Field:It is interesting to note that it is increasing s........ Read more »

Jan, S., Santin, G., Strul, D., Staelens, S., Assié, K., Autret, D., Avner, S., Barbier, R., Bardiès, M., Bloomfield, P.... (2004) GATE: a simulation toolkit for PET and SPECT. Physics in Medicine and Biology, 49(19), 4543-4561. DOI: 10.1088/0031-9155/49/19/007  

Klein, S., Staring, M., Murphy, K., Viergever, M., & Pluim, J. (2010) elastix: A Toolbox for Intensity-Based Medical Image Registration. IEEE Transactions on Medical Imaging, 29(1), 196-205. DOI: 10.1109/TMI.2009.2035616  

Hricak, H., Brenner, D., Adelstein, S., Frush, D., Hall, E., Howell, R., McCollough, C., Mettler, F., Pearce, M., Suleiman, O.... (2010) Managing Radiation Use in Medical Imaging: A Multifaceted Challenge. Radiology, 258(3), 889-905. DOI: 10.1148/radiol.10101157  

  • April 23, 2013
  • 06:15 AM
  • 620 views

fMRI lie detection and the Semrau case

by Know Your Images in Know Your Images

Semrau is a psychologist accused of committing fraud to Medicare and Medicaid. The case became mostly famous, because he asked that fMRI lie detection would be a evidence in court. The judge had to decide if fMRI was admissible and after hearing scientists advocating for both sides, he has decided not to admit such evidence. However, the question is: Will it be possible to use fMRI lie detection one day?, because the reason for not admitting it has been based on the error rates and acceptance by........ Read more »

Kozel, F., Johnson, K., Mu, Q., Grenesko, E., Laken, S., & George, M. (2005) Detecting Deception Using Functional Magnetic Resonance Imaging. Biological Psychiatry, 58(8), 605-613. DOI: 10.1016/j.biopsych.2005.07.040  

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