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