KSEPI_SEQUENCE Struct Reference

Data Fields
KS_SEQ_CONTROL	seqctrl
KS_EPI	epitrain
KS_EPI	dynreftrain
KS_TRAP	spoiler
KS_SELRF	selrfexc
KS_SELRF	selrfref
KS_SELRF	selrfref2
KS_TRAP	diffgrad
KS_TRAP	diffgrad2
KS_WAIT	pre_delay
KS_WAIT	post_delay
KS_TRAP	fcompphase
KS_TRAP	fcompslice
KS_PHASEENCODING_PLAN	full_peplan
KS_PHASEENCODING_PLAN	ref_peplan
KS_PHASEENCODING_PLAN	peplan
KS_PHASEENCODING_PLAN *	current_peplan

Detailed Description

typedef struct holding all all gradients and waveforms for the ksepi sequence

Field Documentation

seqctrl

KS_SEQ_CONTROL seqctrl

Control object keeping track of the sequence and its components

epitrain

KS_EPI epitrain

EPI readout train including de/rephasers, readout and phase enc blips

dynreftrain

KS_EPI dynreftrain

Phase reference EPI train for ghost correction

spoiler

KS_TRAP spoiler

Gradient spoiler after FSE train

selrfexc

KS_SELRF selrfexc

Excitation RF pulse with slice select and rephasing gradient

selrfref

KS_SELRF selrfref

First refocusing RF pulse

selrfref2

KS_SELRF selrfref2

Second RF refocusing pulse when opdualspinecho = 1

diffgrad

KS_TRAP diffgrad

Both diffusion gradients when opdualspinecho = 0 (monopolar)

diffgrad2

KS_TRAP diffgrad2

opdualspinecho = 1 (twice-refocused) uses both difgrad1 and difgrad2

pre_delay

KS_WAIT pre_delay

For echotime shifting –> ghost minimization for multishot

post_delay

KS_WAIT post_delay

For echotime shifting –> ghost minimization for multishot

fcompphase

KS_TRAP fcompphase

Extra gradient for flowcomp in phase direction (2 instances)

fcompslice

KS_TRAP fcompslice

Extra gradient for flowcomp for slice excitation

full_peplan

KS_PHASEENCODING_PLAN full_peplan

fully sampled phase encoding plan for 2D and 3D use

ref_peplan

KS_PHASEENCODING_PLAN ref_peplan

phase encoding plan used for reference volume

peplan

KS_PHASEENCODING_PLAN peplan

phase encoding plan (may be undersampled) for 2D and 3D use

current_peplan

KS_PHASEENCODING_PLAN* current_peplan

pointer to the plan currently in use

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The documentation for this struct was generated from the following file:

• ksepi_implementation.e