DICOM related issues

	A	B	C	D	E	F
1	#	Summary	Report to:	Reported?	Origin	@
2	1	No M or P indicator to distinguish Magnitude from Phase?	? CMRR, Siemens, DICOM?	No	https://github.com/nipy/heudiconv/issues/518
3	2	No TotalReadoutTime or EffectiveEchoSpacing metadata for fieldmaps	Philips	No	https://github.com/rordenlab/dcm2niix/issues/377#issuecomment-1344508152
4	3	No phase encoding polarity, so dcm2niix extracts PhaseEncodingAxis, not direction	Philips	No	https://github.com/rordenlab/dcm2niix/issues/508#issuecomment-824867630
5	4	Instance number (0020,0013) repeated for different images in a series causing PACS and archival tools to overwrite	Siemens	No	https://github.com/neurolabusc/dcm_qa_fmap
6	5	No way to determine slice timing for EPI volumes	Philips		https://github.com/neurolabusc/dcm_qa_philips/tree/master	https://github.com/rordenlab/dcm2niix/tree/master/Philips#missing-information
7	6	No way to determine partial Fourier fraction (only presence or absence)	Philips		https://github.com/neurolabusc/dcm_qa_philips/blob/master/Ref/WIP_dti_ax_601.json	https://github.com/rordenlab/dcm2niix/tree/master/Philips#missing-information
8	7	No way to determine temporal order of DWI and ASL volumes	Philips		https://github.com/neurolabusc/dcm_qa_philips/tree/master	https://github.com/rordenlab/dcm2niix/tree/master/Philips#missing-information
9	8	No way to determine FSL/BIDS definition of TotalReadoutTime	Philips		https://github.com/neurolabusc/dcm_qa_philips/tree/master	https://github.com/rordenlab/dcm2niix/tree/master/Philips#missing-information
10	9	TemporalPositionIndex (0020,9128) set to 1 for all fMRI volumes	CanonEnhanced		https://github.com/rordenlab/dcm2niix/tree/master/Canon#avoid-enhanced-dicom
11	10	Does not report phase polarity, does not adjust bvec for phase polarity	CanonClassic		https://github.com/neurolabusc/dcm_qa_canon	https://github.com/rordenlab/dcm2niix/tree/master/Canon#avoid-classic-dicom
12	11	SeriesInstanceUID (0020,000E) violation	CanonClassic		https://github.com/neurolabusc/dcm_qa_canon	https://github.com/rordenlab/dcm2niix/issues/495
13	12	SmartSpeed level not reported	Philips		https://github.com/neurolabusc/dcm_qa_cs_dl
14	13	Single acceleration value does not distinguish between compressed sensing and grappa acceleration	Philips and Siemens		https://github.com/neurolabusc/dcm_qa_cs_dl
15	14	No DeviceSerialNumber for PET	GE		Attempts to QC multisite PET studies - how do we know the site used the same scanner they qualified with?
16	15	Siemens Orientation Text	Siemens		(0051,100e) under VE11 was a very convenient representation of the orientation/rotations applied for a given scan. It's absence in the XA30 DICOMs is a big loss.
17	16	Use 0018 9089 to report diffusion gradients	All		Manufacturers use private tags and different frames of reference, 0018 9602..0018 9607 underspecified	https://www.na-mic.org/wiki/NAMIC_Wiki:DTI:DICOM_for_DWI_and_DTI
18	17	Effect of imaging gradients on diffusion weighting (b matrix)	GE, Philips	informally	A different manufacturer reports it, and it revealed a discrepancy between b as prescribed, played, and reported (as a scalar).
19	18	Use enhanced DICOM not mosaics for storing multiple 2D slices in a single file	UIH		https://github.com/rordenlab/dcm2niix/issues/225
20	19	Use private creator in nested sequence item datasets.	UIH		https://github.com/rordenlab/dcm2niix/issues/225	https://dicom.nema.org/medical/dicom/current/output/chtml/part05/sect_7.8.html#para_057b129b-322a-455e-b352-40c6c0749bb4
21	20	Reconstruction method parameters usually missing for PET	All
22	21	Relative Table Position - requires clarification on howto	All		https://github.com/bids-standard/bids-specification/issues/1643
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