FireVoxel Build 273 is released.

1. Corrected Multi-modal registration using crosscorrelation measure.

2. Restored the ABT test for Registrations.

3.  NIFTI File Load\Save:  enabled writing the modality name into the "description" field of the
NIFTI header.

4.  ANALYZE file format File Load\Save:  enabled writing the modality name into the "description" field of the NIFTI header.

5.   Enabled NIFTI Save\Load of 64-bit Real volume data.

6.  Implemented corrections to the "Manual\Automatic" Concentration baseline calculations.

7.  Implemented ABT subtest for the Lung\Trachea  4D segmentation

8.  Implemented new Concentration converison method  (S/S0-1)/(CR*T1)