Columns of DICOMImages table

Which columns are needed in the DICOMImages table? I wanted to remove some columns to save space in the database.

CREATE TABLE [dbo].[DICOMImages](

[SOPInstanc] [varchar](64) NOT NULL,

[SOPClassUI] [varchar](64) NULL,

[ImageNumbe] [varchar](12) NULL,

[ImageDate] [char](8) NULL,

[ImageTime] [varchar](16) NULL,

[EchoNumber] [varchar](64) NULL,

[NumberOfFr] [varchar](12) NULL,

[AcqDate] [char](8) NULL,

[AcqTime] [varchar](16) NULL,

[ReceivingC] [varchar](16) NULL,

[AcqNumber] [varchar](12) NULL,

[SliceLocat] [varchar](16) NULL,

[SamplesPer] [varchar](5) NULL,

[PhotoMetri] [varchar](16) NULL,

[Rows] [varchar](5) NULL,

[Colums] [varchar](5) NULL,

[BitsStored] [varchar](5) NULL,

[ImageType] [varchar](128) NULL,

[ImageID] [varchar](16) NULL,

[ImagePat] [varchar](64) NULL,

[SeriesInst] [varchar](64) NULL,

[AccessTime] [int] NULL,

[qTimeStamp] [int] NULL,

[qFlags] [int] NULL,

[qSpare] [varchar](64) NULL,

[ObjectFile] [varchar](255) NULL,

[DeviceName] [varchar](32) NULL,

)