Fix dicom naming bug with mixed types

CHANGELOG.md

@@ -5,6 +5,7 @@ This document contains the Spec2nii release history in reverse chronological ord
 - SpectralWidth now added to header extension automatically to match bids specification.
 - NIfTI-MRS V0.8 now generated.
 - Better handling of philips spar/sdat tags and singleton dimensions.
+- Fixed bug where no name was set when a mixed folder of imaging and spectroscopy dicom was provided.
 
 0.7.1 (Tuesday 7th November 2023)
 ---------------------------------

spec2nii/Siemens/dicomfunctions.py

@@ -91,6 +91,7 @@ def multi_file_dicom(files_in, fname_out, tag, verbose):
     reference = []
     str_suffix = []
     mainStr = ''
+    first_mrs_dcm_found = False
     for idx, fn in enumerate(files_in):
         if verbose:
             print(f'Converting dicom file {fn}')
@@ -129,7 +130,8 @@ def multi_file_dicom(files_in, fname_out, tag, verbose):
         reference.append(ref_ind)
         str_suffix.append(str_suf)
 
-        if idx == 0:
+        if not first_mrs_dcm_found:
+            first_mrs_dcm_found = True
             if fname_out:
                 mainStr = fname_out
             elif 'SeriesDescription' in img.dcm_data: