Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12]

▼NISMRMRD
CAccelerationFactor
CAcquisition	MR Acquisition type
CAcquisitionHeader	Header for MR Acquisition type
CAcquisitionSystemInformation
CCoilLabel
CConfigFile
CConfigText
CDataset
CDiffusion
CDiffusionDimension
CEncoding
CEncodingLimits
CEncodingSpace
CExperimentalConditions
CFieldOfView_mm
CFlagBit	Convenience class for flags
CGradientDirection
CHDF5_Acquisiton
CHDF5_Waveform
CImage	MR Image type
CImageHeader	Header for MR Image type
CISMRMRD_Acquisition
CISMRMRD_AcquisitionHeader
CISMRMRD_Dataset
CISMRMRD_EncodingCounters
CISMRMRD_error_node
CISMRMRD_Image
CISMRMRD_ImageHeader
CISMRMRD_NDArray
CISMRMRD_Waveform
CISMRMRD_WaveformHeader
CIsmrmrdHeader
CIStreamView
CLimit
CMatrixSize
CMeasurementDependency
CMeasurementInformation
CMetaContainer	Meta Container
CMetaValue
CMultiband
CMultibandCalibrationType
CMultibandSpacing
CNDArray	N-Dimensional array type
COptional
COStreamView
CParallelImaging
CProtocolDeserializer
CProtocolSerializer
CProtocolStreamClosed
CReadableStreamView
CReferencedImageSequence
CSequenceParameters
CStudyInformation
CSubjectInformation
CTextMessage
CthreeDimensionalFloat
CTrajectoryDescription
CTrajectoryType
CUserParameterDouble
CUserParameterLong
CUserParameters
CUserParameterString
CWaveform
CWaveformHeader
CWaveformInformation
CWaveformType
CWritableStreamView