suv: Summarizing SUVs for PET
In oro.pet: Rigorous - Positron Emission Tomography

The standard uptake value (SUV) is summarized using the hotspot method or by calculating total volume of the high values.

1 2	hotSpotSUV(suv, radius = 10, type = "3D") totalSUV(suv, mask, z, bg, local = TRUE)

`suv`	is the standard uptake value (SUV).
`radius`	is the desired hotspot radius (units = voxels).
`type`	is a character string (acceptable values are `2D` or `3D`) that determines the dimension of the hot spot (default = `3D`).
`mask`	is a multidimensional array of logical values.
`z`	is the slice index.
`bg`	is the estimated background SUV.
`local`	is a logical value.