These techniques are still considered experimental and are not widely used. Some arteries in the heart cannot be seen with cardiac MRA. To get the best pictures of the heart, you have to hold your breath and lie very still; this can be too hard for some people and, in these cases, the images of the heart may not be good enough to use. During other types of noninvasive testing such as a stress echo, you are hooked up to an ECG so your doctor can monitor your heart's activity. This is difficult to do with cardiac MRI because the magnetic field affects the ECG. There are some safety issues with chemical stress cardiac MRI testing compared with other types of chemical stress tests. The doctor is not in the room with you during the test, and it may not be immediately obvious if you experience problems because you are hidden inside the machine.
What are the limitations of cardiac MRI or MRA?
These techniques are still considered experimental and are not widely used. Some arteries in the heart cannot be seen with cardiac MRA. To get the best pictures of the heart, you have to hold your breath and lie very still; this can be too hard for some people and, in these cases, the images of the heart may not be good enough to use. During other types of noninvasive testing such as a stress echo, you are hooked up to an ECG so your doctor can monitor your heart's activity. This is difficult to do with cardiac MRI because the magnetic field affects the ECG. There are some safety issues with chemical stress cardiac MRI testing compared with other types of chemical stress tests. The doctor is not in the room with you during the test, and it may not be immediately obvious if you experience problems because you are hidden inside the machine.
Subscribe to:
Post Comments (Atom)
Popular Posts
-
3-PLANE LOC AXIAL T1 AXIAL T2 FS CORONAL T1 CORONAL STIR Axial T2 high resolution FIESTA ( Facial Nerves in IAC for any space occu...
-
Magnetic resonance imaging (MRI) cisternography depends on heavily T2-weighted sequences with fat suppression. CSF appears as a bright s...
-
Regional Saturation Bands Regional saturation employs a 90° RF pulse which, when combined with a gradient orthogonal to the imaging p...
-
SOURCE: http://imageradiology.blogspot.com/2012/06/3d-mrcp-pancreas.html The 3D TSE sequence can produce high-spatial-resolution MRCP...
-
Prostrate MRI Appearence T1‐weighted MR images, the normal prostate gland demonstrates homogeneous intermediate to‐ low signal inten...
-
MP-RAGE stands for Magnetisation Prepared RApid Gradient Echo. MP-RAGE is a 3DFT contrast prepared gradient echo sequence. The T1 weig...
-
--> Indications : evaluating for meniscal retears in a postoperative knee. Sequences Knee MR arthrogram MRI Protocol : ...
-
Axial Plane: Prescribe plane perpendicular to midshaft of the proximal phalanx of the thumb. Scan from 1st carp-metacarpal joint th...
-
CERVICAL MYELOGRAM LUMBAR MYELOGRAM Technique Single-slice MR myelography was ...
-
High Resolution Brainstem Imaging CISS (Constructive Interference Steady State) CISS is a strongly T2 weighted GRE sequence. In essen...
No comments:
Post a Comment