2007-02-27 22:25:35 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Medicine
Artifacts from metal frequently appear as regions of empty space around the implant - frequently called 'black-hole artifact' e.g. a 3mm titanium alloy coronary stent may appear as a 5mm diameter region of empty space on MRI, whereas around a stainless steel stent, the artifact may extend for 10-20 mm or more. Please see implants and foreign bodies under the subtitle-safety.
2007-02-27 22:44:51 · answer #1 · answered by gangadharan nair 7 · 0⤊ 1⤋
Metal will certainly produce artefacts and distortion of the images. What is worse, MRI involves placing you in a strong magentic field and many metals will move in the magnetic field. It is not a good idea to have an MRI if there are screws in the skull.
2007-02-28 10:16:53 · answer #2 · answered by Vinay K 3 · 2⤊ 1⤋
MRI stands for Magnetic Resonance Imaging, and that loud sound you hear whilst inside the tube is a very powerful magnet. What do you think? Get a CT-Scan...
2007-02-28 21:46:09 · answer #3 · answered by tomcatwilson 1 · 0⤊ 1⤋
confirm the location of screw.it looks like the mri is of the abdominal part focusing the hole
2007-02-28 06:29:35 · answer #4 · answered by Anonymous · 0⤊ 2⤋