Dear M. Ricky Ramadhian , you seem to be rather confused (no offence intended). I gather that you have some background in clinical MRI, not in MR technology as such, across all its branches (spectroscopy, relaxometry, and imaging). To start with, you might read this little pamphlet of mine to get a broader perspective:

Article One-Page MR Primer for newcomers, busy managers, laywers, an...

Assuming that you come from an MRI environment, spectroscopy on MRI scanners can be done - to some extent - using the basic scanner gear, except for the receiver coils which will be typically replaced by surface coils placed onto the parts of the body which allow to reach magnetic field homogeneity required by spectroscopy (a couple of orders of magnitude higher than the 'usual' MRI). Typically, 1H NMR studies (choline and other compounds) are limited to the posterior parts of the brain and 31P studies (ATP and ADP) to muscle masses. So yes, there is some amount of extra hardware, and there is certainly a very different software. No contrast agents are used/needed, in fact spectroscopy is not much concerned with imaging, just with chemical composition. However, studies pointing to combining spectroscopic (i.e., chemical) resolution with the spatial resolution of MRI are under way in many places, but they have not yet reached common clinical status.

Thank sir stan sykora

Hi,

To simplify: (Nuclear) Magnetic Resonance Imaging (MRI) gives us positional information (images), where Nuclear) Magnetic Resonance Spectroscopy (MRS) gives us chemical information. The chemical information can be collect using methodologies that give some degree of position dependence.

Since the method used to acquire the data is slightly different there is a software requirement for both acquisition and processing. As mentioned in the previous answer the shim of the magnet might have be be adjusted to allow higher frequency resolution over the volume-of-interest (some magnet designs are limited in this ability). There could be hardware requirements depending on the nuclei being observed. Most clinical systems only have hardware for the proton frequency of the magnetic field strength. The transceiver and coils would likely be adequate for spectroscopy, but is there was interest in nuclei other than Hydrogen then additional hardware would be required.

One final note, higher field strengths are beneficial for the quality of the spectroscopic studies. There is a gain in frequency resolution (separation of chemical species, as well as increased sensitivity.

Cheers,

Which course I can study this more about MRI? Such as master, or fellowship. Thank

Magnetic resonance spectroscopy (MRS) is a functional brain imaging method. The rationale behind functional brain imaging is as follows: When a person engages in a cognitive operation like thinking, remembering, reading, or using language, changes occur in the brain. Magnetic resonance spectroscopy non-invasively measures changes in brain chemistry, such as lactate or glutamine, in response to some type of challenge. The chemical shifts occur in real time, but require longer acquisitions to measure the shift (Hunter & Wang, 2001). The spatial resolution of MRS is poor, so the maps are aligned with a structural MRI scan to allow precise localization of brain activity associated with performance of a particular task.