362981
The SUV is calculated either pixel-wise or over a region of interest ( ROI ) for each image of a dynamic series at time points t. It is the ratio of ( 1 ) tissue radioactivity concentration ( e.g. in MBq/kg = kBq/g ) at time t , c ( t ) , and ( 2 ) the injected activity ( e.g. in MBq ) at the time of injection ( t = 0 ) divided by the body weight ( e.g. in kg ) : SUV ( t ) = \ frac In other words , the SUV represents the ratio of ( 1 ) the actual radioactivity concentration found in a selected part of the body at a certain time point , and ( 2 ) the radioactivity concentration in the hypothetical case of an even distribution of the injected radioactivity across the whole body .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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