TransformPhilipsDTI

MLModule

genre	DTIImageProcessing
author	Jan Klein
package	FMEwork/Release
dll	MLDTI
definition	MLDTI.def
keywords	DTI, Philips, gradients, XYZ, LPH, MPS, NWV

Purpose

The module TransformPhilipsDTI calculates the applied directions in diffusion scanning.

These applied directions depend on the exact settings chosen in a protocol, the software release, and the applied geometry.

Usage

Enter the correct parameters from the protocol settings of the used Philips scanner.

The resulting gradients are shown in the Gradients field.

Windows

Default Panel

Parameter Fields

Field Index

Fat Shift: Enum	Slice Angulation (AP): Float
Foldover: Enum	Slice Angulation (FH): Float
Gradient Overplus: Enum	Slice Angulation (RL): Float
Gradient Resolution: Enum	Slice Orientation: Enum
Gradients: String	User Defined Gradients: String
Patient Orientation: Enum
Patient Position: Enum
Philips Release: Enum

Visible Fields

Slice Angulation (RL)

name: rlTang, type: Float, default: 0

Sets the slice angulation for the rl tangent.

Slice Angulation (AP)

name: apTang, type: Float, default: 0

Sets the slice angulation for the ap tangent.

Slice Angulation (FH)

name: fhTang, type: Float, default: 0

Sets the slice angulation for the rfh tangent.

Gradients

name: gradients, type: String

Shows the gradients of the acquired image.

User Defined Gradients

name: userDefinedGradients, type: String

Sets user-defined gradients if no standard gradient scheme has been used during image acquisition.

The format is as follows:

x1 y1 z1
y2 y2 z2
y3 y3 z3
...

where correct values for x1, y1, z1, y2,… have to be inserted, e.g.:

1.0  0.75 0.0
0.0  1.0 1.1
0.66666 0.6666 0.3333
...

Press Apply to apply the gradients.

Fat Shift

name: fatShift, type: Enum, default: Choose fat-shift direction

Defines the fat shift mode.

Values:

Title	Name
​Choose fat-shift direction	​Choose fat-shift direction
​A	​A
​P	​P
​F	​F
​H	​H
​R	​R
​L	​L

Foldover

name: foldover, type: Enum, default: Choose foldover direction

Defines the fold-over mode.

Values:

Title	Name
​Choose foldover direction	​Choose foldover direction
​Ap	​AP
​Fh	​FH
​Rl	​RL

Gradient Resolution

name: scheme, type: Enum, default: Choose gradient scheme

Defines the gradient resolution scheme.

Values:

Title	Name
​Choose gradient scheme	​Choose gradient scheme
​Low	​Low
​Medium	​Medium
​High	​High
​User	​User

Patient Position

name: position, type: Enum, default: Choose patient position

Defines the patient position.

Values:

Title	Name
​Choose patient position	​Choose patient position
​Head first	​Head first
​Feet first	​Feet first

Patient Orientation

name: orientation, type: Enum, default: Choose patient orientation

Defines the patient orientation.

Values:

Title	Name
​Choose patient orientation	​Choose patient orientation
​Supine	​Supine
​Prone	​Prone
​Rightdecubitus	​Rightdecubitus
​Leftdecubitus	​Leftdecubitus

Slice Orientation

name: sliceOrientation, type: Enum, default: Choose slice orientation

Defines the slice orientation.

Values:

Title	Name
​Choose slice orientation	​Choose slice orientation
​Transversal	​Transversal
​Sagittal	​Sagittal
​Coronal	​Coronal

Gradient Overplus

name: overplus, type: Enum, default: Choose overplus

Defines the gradient overplus.

Values:

Title	Name
​Choose overplus	​Choose overplus
​Overplus	​Overplus
​Non-overplus	​Non-overplus

Philips Release

name: softwareVersion, type: Enum, default: Choose software version

Defines the release version of the Philips software.

Values:

Title	Name
​Choose software version	​Choose software version
​R9-r11, r1.2	​R9-r11, r1.2
​R1.5 or higher	​R1.5 or higher
​R2.5 or higher	​R2.5 or higher