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X-ray fun on Flickr May 9, 2009

Posted by tomography in console, X-ray.
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I am a big fan of video games, and a couple years ago I had a see-through Gameboy.  These rare x-ray images created by Reintji on Flickr, reminded me of those good old days, so I picked up the controller of my Wii and had some fun!

nunchuck_xray

wii_xray

PS and XBOX fans will also find images of their favorite consoles on the following page.

– Andras

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Radiology is Art! August 8, 2008

Posted by tomography in Art, Radiology, X-ray.
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Art is about visual sensation. Radiology is a visual area of medicine, but could it be artistic? Wim Delvoye thinks so! He is a Belgian artist, who uses X-ray imaging technique to redefine Gothic Art. Just an example of his work:

Check out the rest of his work in this area of Art:

– Andras

Flick’r misses tomography February 29, 2008

Posted by tomography in CT, MRI, Off Topic, Radiology, Tomography, web 2.0, X-ray.
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We’ve been posting some really great tools (this and this too -András’s great collection) you can use at your work. One of them was Flick’r, so it’s not the first time you can read about it on our blog, and I’m sure it’s not the last. Surfing this huge base of pictures, I was searching for any groups dealing with radiology or nuclear medicine.

The best way to store, search, sort and share images.

flickr logo

Honestly I wasn’t that successful. Xray is quite popular, but no PET, SPECT images. I think doctors haven’t discovered the great potential, Flick’r provides, yet.

Here are some examples on Flickr Groups about radiology:

  • RadsWiki made by a radiology residental in NYC and the webmaster of for his radiology wiki
  • Nasty xray
  • Real radiology A great radiology group with more than 450 photos detailed!
  • Orthopaedic image library The name tells what it’s about.
  • MRI
  • Tomography Tomographic images of any kind, including but not limited to MRI, PET, and plain old X-ray CT. Photos of the equipment and people used to make the images is fine in limited amounts, but the main focus is the tomographic images.
  • Biopsy Feel free to add imaging of any radiology-guided biopsy procedure.
  • The Bassett Collection: The Basset Collection, which now belongs to Stanford University’s School of Medicine, is the definitive dissection collection available to medical students and instructors. These incredibly detailed dissections show and label most every part of the human body, from its tiniest veins, arteries and nerves to serial cross-sections of the spinal cord.

Hopefully, the number of pictures about radiology or even nuclear medicine will grow exponentially in the near future e.g. at Flickr. It would be useful for students as well, as they cannot always go and see these pics.

-Imre

    How to turn your computer screen into an X-ray viewer? February 28, 2008

    Posted by tomography in Radiology, X-ray.
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    Traditional silver-nitrate films are getting obsolete as imaging turns toward digital technologies. PET, CT, MRI technologies work solely on digital media, and in Imre’s last post you could read about X-ray going digital as well. Although they are relatively more expensive and require a lot of storage space, films still got their advantages. They are easy for patients to carry from one doctor to another, and there is no need to keep them on a hard drive. What to do if your medical office is so modern that you do not keep an X-ray viewer anymore?
    Well, turn your CRT or TFT into your very own portable x-ray viewer!

    How? Check out this page where you can find out all the details! And if want to get real creative, you can add colors as well. Have fun!

    – Andras

    Blogged with the Flock Browser

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    Xray goes digital February 26, 2008

    Posted by tomography in CT, development, Off Topic, Radiology, What tomorrow brings?, X-ray.
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    After a long break I returned to one of my beloved hobbies, photography. I was very happy when my brand new DSLR (digital single-lens reflex) camera arrived. Coming back wasn’t that easy, though I had years of practice with SLR and lately used more digital compacts too. The development, we went through is remarkable, let it be hardware, software, quality, ease of use or techniques. One dealing with digital photography really has to know more than the basis and should be up to date, to create the best pictures. So I ran over some wikis…

    One really fundamental thing is the image sensor, as there is no film. Sensors works as film. This is a digital light sensitive flan – a photoelectric sensor, which perceives the quantity of light coming through the lens, and then forwards this essential information as pixels to the processor. So it’s obvious why companies emphasize developing better and better sensors.

    cmosMaybe you heard of these, like CCD (charge-coupled device) or CMOS (complementary metal-oxide-semiconductor). CCD is an analog shift register, enabling analog signals (electric charges) to be transported through successive stages (capacitors) controlled by a clock signal.

    Basicaly there are two groups of image sensors (IS). CCD-CMOS and CCD-NMOS (n-channel metal-oxide-semiconductor). In weekdays we call them -not so accurately- CCD and CMOS. Each has unique strengths and weaknesses giving advantages in different applications. Neither is categorically superior to the other, although vendors selling only one technology have usually claimed otherwise. The difference between these two is in the manufacturing process. Both types of imagers convert light into electric charge and process it into electronic signals. In a CCD sensor, every pixel’s charge is transferred through a very limited number of output nodes (often just one) to be converted to voltage, buffered, and sent off-chip as an analog signal. All of the pixel can be devoted to light capture, and the output’s uniformity (a key factor in image quality) is high. In a CMOS sensor, each pixel has its own charge-to-voltage conversion, and the sensor often also includes amplifiers, noise-correction, and digitization circuits, so that the chip outputs digital bits. With each pixel doing its own conversion, uniformity is lower. But the chip can be built to require less off-chip circuitry for basic operation. Both CCD and CMOS imagers can offer excellent imaging performance when designed properly. CCD and CMOS will remain complementary. The choice continues to depend on the application and the vendor more than the technology.

    The reason I wrote about ISs was the creation of The University of Sheffield, namely large and sensitive CMOS sensors for the next generation of X-ray based imaging systems.

    Easier to use and faster than the imagers used in current body scanners, and with very large active pixel sensors with an imaging area of approximately 6cm square, the technology has been specifically developed to meet demanding clinical applications such as x-ray imaging and mammography. This silicon imager is about 15 times larger in area than the latest Intel processors. The next step of the project is to produce wafer-scale imagers which can produce images that approach the width of the human torso. This will eliminate the need for expensive and inefficient lenses and so enable lower-cost, more sensitive and faster medical imaging systems.

    These sensors were developed by the CMOS Sensor Design Group at STFC´s Rutherford Appleton Laboratory in association with the University of Sheffield and University College London.

    Colour X-ray December 8, 2007

    Posted by tomography in development, Off Topic, Radiology, Tomography, X-ray.
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    Scientists at The University of Manchester have developed a new x-ray imaging technique. This new method aims to create colour x-ray pictures 3D. The new technique developed by the Manchester team is called tomographic energy dispersive diffraction imaging (TEDDI). It requires a synchrotron radiation white X-ray source so it is capable of producing structure composition profiles with resolutions approaching 1 micron. Such a facility would be ideal for studying a whole range of problems in materials and engineering science.

    spacexray

    Current imaging systems such as spiral CAT scanners do not use all the information contained in the X-ray beam. We use all the wavelengths present to give a colour X-ray image. This extra information can be used to fingerprint the material present at each point in a 3D image. – says Professor Cernik

    Nice expectations on biomaterials. Distinguishing normal tissue from abnormal.

    We have demonstrated a new prototype X-ray imaging system that has exciting possibilities across a wide range of disciplines including medicine, security scanning and aerospace engineering.

    Yet the problem is time. To create a scan takes hours, but scientists believe that it will be reduced to just a few minutes. The method could be useful in specific tissue identification in humans or even identifying heroin, cocaine in freight; or could be useful at car and aerospace engineering showing whether welds are damaged or have too much strain. So reaching the medical line is not that close, but what is late does not go by.