MRS Synthetic Data Working Group :: Current Simulation Methods
In a previous survey, we asked about the models and simulators researchers are using to simulate their synthetic data. We were surprised by the diversity of responses. Therefore in this survey, we would like to get a better idea of where your simulators or physics models came from, how many unique simulators are out there, and what they currently do. Please take some time to answer the following questions. 

Important: Please read the questions carefully as some surveys will have very similar questions that differ in key aspects. For example, asking what you THINK should be included versus what you ACTUALLY include.

*Note: Unpublished models can be tricky to track. If you shared or received a model, please coordinate with the original developer(s) to be sure you report the same identifier, whether that is the developer, the PI, or the group/institution. 

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Email *
Where did your simulator come from?
The next few questions will hopefully help identify how many unique simulation frameworks are floating around.
If you work with synthetic data already: 
When simulating data, do you use an in-house or external model?
 *
Required
If you work with a synthetic data simulator/physics model that is published, whether in-house or external, please provide the corresponding citation for the framework.
If you work with a synthetic data simulator/physics model that is unpublished and in-house, please provide an identifier for with the model. 
If you work with a synthetic data simulator/physics model that is unpublished and external, please refer to the *Note at the beginning and provide an identifier for the model.
How do you simulate your basis sets? Please indicate the software name or if you use an in-house, unpublished platform.
If you use special considerations when simulation your basis sets, please elaborate.
What do your simulators do?
These next questions will help us learn what kind of data researchers are simulating and their methodologies.
What type of spectra do you simulate? E.g. SVS, MRSI, functional, diffusion, etc.

When specifying other, please separate multiple types using a semicolon (;). 
When simulating data, what tissue type or organ system are you simulating? E.g. Brain, breast, prostate, liver, muscle, bone marrow, etc.

When specifying other, please separate multiple types using a semicolon (;). 
What subject species do your simulations reflect? 

When specifying other, please separate multiple types using a semicolon (;). 
What nucleus or nuclei do you simulate?
What programming language do you use for your simulations?
Please indicate which of the following experimental factors you ALREADY include when generating your synthetic data: *
Required
Please indicate which of the following acquisition artifacts you ALREADY include when generating your synthetic data: *
Required
Of the parameters you use, do your simulations use ranges that are specifically: 
Physiological
Pathological
Both
Neither
Unsure
Metabolite concentrations
Line shapes (Lorentzian/Gaussian terms)
SNR
Phase offsets
Frequency shifts
Other spectral components
If you answered Physiological, Pathological, or Both to any of the above, where do you obtain the information used to define your simulation ranges?
If you answered Neither or Unsure to any of the above, please elaborate. (E.g. Are they unnecessary for your applications? Do you not have access to pathophysiological ranges? Etc.)
If the Data & Code Sharing Committee were to develop a standardized, in vivo-like simulation framework based on the results of the current MRS Synthetic Data Working Group, would you change from your current framework to the new framework?
Clear selection
If you answered No or Maybe in the last question, can you please elaborate on your reason why?
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