PIXI-155: Use technician perspective field to rotate image if needed

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- [PIXI-155] - Technician perspective field added to the hotel scan record form. The front/back perspectives can be
+               selected for the hotel scan record. The image will be rotated accordingly during the splitting process
+               if the perspective is set to back.
+
 ### Fixed
 
 - [PIXI-148] - Fix issue with Inveon CT sessions splitting not detecting enough regions. Will now adjust the threshold
@@ -60,4 +66,5 @@ Initial release of the PIXI Mice Image Splitter and Docker image.
 [PIXI-136]: https://radiologics.atlassian.net/browse/PIXI-136
 [PIXI-146]: https://radiologics.atlassian.net/browse/PIXI-146
 [PIXI-148]: https://radiologics.atlassian.net/browse/PIXI-148
-[PIXI-149]: https://radiologics.atlassian.net/browse/PIXI-149
+[PIXI-149]: https://radiologics.atlassian.net/browse/PIXI-149
+[PIXI-155]: https://radiologics.atlassian.net/browse/PIXI-155

splitter_of_mice/run.py

@@ -75,6 +75,10 @@ def run(username: str, password: str, server: str,
         # Convert hotel scan record to metadata dictionary format expected by splitter of mice
         metadata = convert_hotel_scan_record(hotel_scan_record, dicom=isDicomSession, mpet=not isDicomSession)
 
+        # Get Technicians Perspective and rotate image if needed
+        technicians_perspective = hotel_scan_record.get('technicianPerspective', 'Front')
+        technicians_perspective = technicians_perspective.lower()
+
         for i, (splitter, output_dir) in enumerate(zip(splitters, output_dirs)):
             # custom code to handle wustl scanners
             pet_img_size = None
@@ -88,6 +92,9 @@ def run(username: str, password: str, server: str,
                 pet_img_size = (43, 43)
                 ct_img_size = (172, 172)
 
+            if technicians_perspective == 'back':
+                splitter.pi.rotate_on_axis('y')
+
             exit_code = splitter.split_mice(output_dir, num_anim=num_anim, remove_bed=True,
                                           zip=True, dicom_metadata=metadata, output_qc=True,
                                           pet_img_size=pet_img_size, ct_img_size=ct_img_size)

splitter_of_mice/splitter_of_mice/image_classes.py

@@ -369,7 +369,6 @@ def read_chunks(ifr):
             self.img_data = imgmat.reshape(nplanes, ps.y_dimension, ps.x_dimension, nframes)
             self.scaled = True
 
-        self.rotate_on_axis('x')
         return
 
     def save_cut(self, index, path, zip=False):
@@ -455,9 +454,6 @@ def write_chunks(data, dfile):
         cut_img = self.cuts[index]
         metadata = cut_img.metadata
 
-        # did this when reading image data, flip it back now
-        cut_img.rotate_on_axis('x')
-
         # update header variables
         cut_hdr_lines = hdr_lines
         vars_to_update = ['x_dimension', 'y_dimension', 'z_dimension', 'subject_weight']
@@ -551,8 +547,6 @@ def write_chunks(data, dfile):
                 logger.error('PatientID not found in metadata. Unable to add to zip_outputs.')
                 raise Exception('PatientID not found in metadata. Unable to add to zip_outputs.')
 
-        # clean up after myself.
-        cut_img.rotate_on_axis('x')
         out_data = None
         gc.collect()