MRI from A to Z - A Definitive Guide for Medical Professionals

von: Gary Liney

Springer-Verlag, 2010

ISBN: 9781849961356 , 385 Seiten

2. Auflage

Format: PDF, OL

Kopierschutz: Wasserzeichen

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MRI from A to Z - A Definitive Guide for Medical Professionals


 

Preface

6

Acknowledgments

7

AB systems

8

References

8

Absolute peak area quantification

8

References

9

Acoustic damping

9

Acoustic noise

9

References

10

Acoustic shielding

10

Acquisition time

10

Activation map

11

Active noise reduction

11

References

11

Active shielding

11

Active shimming

12

ADC

12

References

12

ADC map

13

Adenosine

13

Adenosine triphosphate

13

Adiabatic pulse

13

Agarose gel

14

References

15

AIF

15

Alanine

15

Aliasing

15

Alignment

16

Alpha

16

Analogue-to-digital converter

16

Angiogenesis

16

AngioMARK

17

Angular frequency

17

Anisotropy

17

Anterior

17

Antialiasing

17

Antiperistalsis

18

Apodization

18

Apparent diffusion coefficient

19

ARC

19

Area under the curve

19

Array

19

Arrhythmia rejection

20

Artifact

20

Arterial input function

20

Arterial spin labeling

20

Artificial neural networks

21

ASL

21

ASPIRE

21

ASSET

21

Association fibers

22

AST

22

Asymmetric echo

22

Asymmetric sampling

22

ATP

22

Attack

22

AUC

23

Auto shim

23

Averaging

23

AVM

23

AX systems

24

Axial

24

B

25

b-Factor

25

B0

26

B0 correction

26

B0 inhomogeneity

26

B1

26

B1 inhomogeneity

27

B1 doming

27

B1 profile

27

Balanced echo

28

Banding artifacts

28

Bandwidth

28

Bandwidth per pixel

28

Baseline

28

Baseline correction

29

BASG

29

BEAT

29

bFFE

29

Bind

30

Binomial pulse

30

Bioeffects

30

Biot-Savart law

31

References

32

Bipolar

32

BI-RADS

32

Birdcage

33

References

33

Bit

33

Black blood

33

BLADE

33

Bland-Altman plot

34

Blipped EPI

34

BLISS

34

Bloch equations

34

References

35

Bloembergen, Purcell, and Pound equation

35

Blood pool agent

36

References

36

Blood suppressed preparation

37

Blooming ball artifact

37

References

37

Blurring

37

Body coil

37

BodySURF

38

Body vision

38

Boil-off

38

BOLD

38

References

39

Boltzmann constant

39

Boltzmann distribution

39

Bolus

40

Bolus timing

40

BolusTrak

40

Bolus tracking

40

Bone imaging

41

Bonferroni correction

41

References

42

Bore

42

Bore liner

43

Bounce-point artifact

43

Bound protons

43

Box car

43

BPH

44

BPP equation

44

BRACE

44

Brachytherapy

44

BRAVO

45

BREASE

45

Breast coil

45

Breast imaging

45

Breath hold

45

Bright blood

46

Bright fat

46

Broca’s area

46

Brodmann areas

46

Bruker

46

BSP

47

“Burnt-in” pixels

47

Burst imaging

47

References

48

Buscopan

48

Byte

48

C

49

Cable loss

49

Cadstream

49

CAL

49

Carbogen

49

Carbon

49

Cardiac MRI

50

Cardiac gating

50

CARE bolus

51

Carr-Purcell

51

References

51

Cartesian

51

Cartigram

51

CASL

51

CC

52

CD

52

CENTRA

52

References

52

Central k-space

52

Central point artifact

53

Center frequency

53

Centric k-space filling

53

Cerebral blood flow (volume)

53

References

54

Cerebrospinal fluid

54

CHARM

54

Chemical shift

54

Chemical shift artifact

55

Chemical shift imaging

55

Chemical shift (“of the second kind”)

56

CHESS

57

Chess (or checker) board

57

Chiller

57

Choline

58

Chunk

59

CIA

59

Cine

59

Circularity

59

Circularly polarized

60

CISS

60

Citrate

60

References

60

Claustrophobia

61

CLEAR

61

Cliavist

61

Closed scanner

61

CNR

61

Coil

61

Coil uniformity correction

62

References

62

Cold head

62

Colored orientation map

63

Combidex

64

Commissural fibers

64

Complexity

64

Composite pulses

64

Conjugate symmetry

64

Constant EPI

65

Contiguous

65

Continuous wave NMR

65

Contraindications

65

Contrast

65

Contrast agents

66

Contrast enhanced

66

Contrast-enhanced MRA

67

References

68

Contrast phantom

68

Contrast-to-noise ratio

69

Contrast factor

69

Control room

69

Controlled mode

69

Convexity

69

Copper

70

Copper sulfate

70

Coronal

70

Corduroy artifact

70

Correlation coefficient

70

Correlation time

71

COSMIC

72

COSY

72

References

72

Cortical flattening

72

Cortical inflation

73

CPMG

73

References

74

Craniocaudal

74

Creatine

74

Critical temperature

74

Cross-excitation

74

Cross peak

75

Cross talk

75

Crusher gradients

75

Cryogens

75

Cryogen free

75

Cryoshielding

76

Cryostat

76

Cryotherapy

76

C-SCAN

76

CSF

76

CSI

77

CSPAMM

77

CT

77

CTL coil

77

CUBE

77

D

78

DAC

78

Daily QA

78

DANTE

78

DAT

78

Data clipping

78

Daum needles

79

db/dt

79

DCE

79

DCIS

79

DDA

79

Dead time

79

Decay

80

Decimation

80

DEFAISE

80

Deflection angle test

80

DEFT

80

Delayed contrast enhancement

81

Delay time

81

Delta

81

Demodulation

81

Dephasing

81

Dephasing lobe

82

DESS

82

Deuterium

82

Dewar

82

DEXA

83

Dextran

83

Diamagnetic

83

DICOM

83

Dielectric constant

84

Dielectric effect

84

References

85

Dielectric pad

85

DIET

86

Diffusion

86

Diffusion ellipsoid

86

Diffusion tensor

86

Diffusion tensor spectroscopy

87

Diffusion time

87

Diffusion-weighted imaging

87

Dimeglumine gadopentatate

87

Dipole

87

Dipole–dipole interactions

87

Dirac’s constant

88

Direction map

88

Discarded data

88

Dispersion

88

Distance factor

89

Distortion

89

Distortion correction

89

References

89

Dixon

89

DIXW (DIXF)

90

DNP

90

Dobutamine

90

Doping

90

Dotarem

91

Double balanced mixer

91

Double donut

91

Double inversion recovery

91

Double oblique

91

Double-tuned

91

Doublet

92

Draining vein

92

References

92

DRESS

92

DRIVE

92

Driven equilibrium

92

DSA

93

DSC

93

DSI

93

DSV

93

DTI

94

References

94

Dual echo

95

Dual slice

95

Dual tune

95

DUFIS

95

Dummy

95

Duty cycle

96

DVT imaging

96

Dwell time

96

DWI

96

References

96

DWIBS

97

Dynamic

97

Dynamic contrast enhancement

97

Dynamic nuclear polarization

99

Dynamic susceptibility contrast

100

E

101

eADC

101

Earth’s magnetic field

101

Earth’s field MRI

101

ECG

101

ECG gating

102

Echo modulation

102

Echo planar imaging

102

Echo spacing

102

Echo time

102

Echo train

103

Echo train length

103

ED

103

Eddy currents

103

Edge enhancement

103

EDR

104

EEG

104

Effective TE

104

Efficiency

104

Eigenvalues

105

Einthoven’s triangle

105

Ejection fraction

105

Elastogram

105

Elastography

105

Electron

106

Electron shielding

106

Electron spin resonance

106

Elliptic centric k-space filling

106

Elongatedness

106

Endogenous contrast

107

Endorectal coil

107

Endorem

108

Enhancement

108

Enhancement rate

108

Enteral agents

108

Entry-slice phenomenon

108

EPI

109

References

109

EPISTAR

109

EPI factor

110

EPIC

110

EPR

110

Ernst angle

111

ETL

111

Eurospin test objects

111

References

112

Even echo rephasing

112

Event related

112

Excitation pulse

112

Exogenous contrast

113

Exponential

113

Exponential ADC

113

Exposure limits

113

EXPRESS

113

Extended dynamic range

114

External interference shield

114

Extracellular agents

114

F

115

FA

115

FACT

115

FADE

115

FAIR

115

FAISE

115

Fall time

116

FAME

116

Faraday cage

116

Faraday’s law

116

FASE

117

FAST

117

FASTCARD

117

Fast Fourier transform

117

References

117

Fast gradient echo

118

Fast IR

118

Fast recovery FSE

118

Fast spin echo

118

Fat

118

Fat fraction

118

Fat only image

119

Fat saturation

120

Fat suppression

120

Fat-water in-phase

120

FATE

121

FatSep

122

FBI

122

FC

122

FE

122

FEDIF

122

Feet first entry

122

Fermi filter

123

Ferridex

123

Ferrogaurd

123

Ferromagnetic

123

Ferucarbotran

123

Ferumoxtran

124

FESUM

124

FFT

124

FFT scale

124

FGRET

124

Fiber tracking

124

FID

125

FID artifact

125

Field decay

125

Field-of-view

125

Field stability

126

FIESTA

126

Filling factor

126

Filter

126

Filtered back projection

127

Finger tapping

127

FIR

127

First pass

127

FISP

128

Five gauss line

128

FLAG

128

FLAIR

128

FLARE

128

FLASE

128

FLASH

129

Flashing artifact

129

Flip angle

129

Floodfill phantom

129

Flow artifacts

130

Flow compensation

130

Flow phenomena

130

Flow-related enhancement

130

Flow void

131

Fluorine

131

Fluoroptic thermometer

131

Fluorotrigger

131

FLUTE

131

Flux

132

fMRI

132

References

132

Foldover

132

Foldover suppression

132

Fonar

133

Footprint

133

Foreign bodies

134

Fourier transformation

134

Fractional anisotropy

134

Fractional echo

135

Fractional NEX

135

Frame of reference

135

Free induction decay

136

Free protons

136

Freeze frame

137

Frequency

137

Frequency encoding

137

Frequency wrap

137

Fresh spins

137

FRFSE

138

Fringe field

138

FSE

139

References

140

FSPGR

140

FT

141

Functional MRI

141

Functool

141

Fusion

141

FUTE

141

FWHM

142

G

143

G/cm

143

GABA

143

Godobenate dimeglumine

143

Gadobutrol

143

Gadodiamide

144

Gadofosveset trisodium

144

Gadolite

144

Gadolinium

144

Gadomer-17

144

Gadoteridol

144

Gadoversetamide

144

Gadovist

145

Gamma

145

GastroMARK

145

Gating

145

Gauss

145

Gaussian

146

Gd-BOPTA

146

Gd-DTPA

146

References

147

Gd-DOTA

147

GE (HealthCare)

147

Gel dosimetry

147

Gel phantoms

147

Gelatin

148

GEM

148

Geometric distortion

148

References

149

Ghosting

149

Gibb’s artifact

151

Gibb’s overshoot

151

GKM

152

Glx

152

Glutamate, glutamine

152

Goggles

152

Golay coils

153

Gradient

154

References

154

Gradient area

154

Gradient coil

154

Gradient echo

154

Gradient moment nulling

155

Graphic prescription

155

GRAPPA

155

References

156

GRASE

157

GRASS

157

GRACE

157

Grayscale

157

Gyromagnetic ratio

157

Gz (Gx, Gy)

158

H

159

h

159

Hemodynamic lag

159

Hemodynamic response function

159

Hahn echo

160

References

160

Half echo

160

Half scan

160

Halo artifact

160

Hanning filter

160

HARP

161

HASTE

162

Head coil

162

Head first entry

163

Header

163

Heat exchanger

163

Helium

163

Helmholtz pair

164

Hepatobiliary agents

164

Hermitian symmetry

164

Herringbone artifact

164

Hertz

164

Heteronuclear correlation spectroscopy

165

HIFUS

165

High field

165

High order phase

166

High pass filtering

166

High velocity signal loss

167

Higher order shimming

167

Hitachi (Medical Systems)

167

HOAST

167

Homogeneity

167

Horizontal bore

168

HRF

168

Hybrid systems

168

Hydrogen

168

Hyperechoes

169

References

169

Hyperintense

169

Hyperpolarization

169

Hyperpolarized gas imaging

169

References

170

Hypointense

170

Hypoxia

170

I

171

I

171

IAM

171

IAPS

171

ICD

171

IDEAL

171

References

172

Image registration

172

Imaginary

172

Imaging, 2D

172

Imaging, 3D

173

Impedance matching

173

Implants

173

iMRI

173

Infarct penumbra

174

Inferior

174

In-flow enhancement

174

Infusion pump

175

InHance

175

Inorganic phosphate

175

In-phase image

175

Integrated body coil

175

Intensity correction

175

Interleaved

176

Interpolation

176

Interventional device

176

References

177

Inverse lateralization

177

Inversion pulse

177

Inversion recovery

177

Inversion time

178

Inverse image

178

IPA

178

iPAT

178

IR

179

IRM

179

Ischemia

179

ISIS

179

Isocenter

179

Isochromat

180

Isointense

180

Isotope

180

Isotropic

180

J

181

J-coupling

181

J-modulation

181

JET

181

Joule

181

K

182

Kaplan–Meier plot

182

References

182

Key-hole imaging

182

References

182

Kinematic imaging

182

k-Space

183

References

183

k-Space ordering

183

k-Space path

184

k-Space shutter

184

k-Space trajectory

184

k-t BLAST

185

References

185

KTRANS

185

References

185

L

186

Laboratory frame

186

Lactate

186

Large field-of-view filter

186

Larmor equation

186

Larmor frequency

187

Landmark

187

Laser

187

Laser ablation

187

LAVA

188

Leksell-frame

188

Lenz’s law

188

Level

188

LC model

188

References

189

Liquid helium

189

Linac

189

Line broadening

189

Linearity

189

Linear regression

189

Linearly polarized

190

Linewidth

190

Linguine sign

190

Lipid

190

References

190

Liposomes

191

Liver-specific contrast agents

191

Loading

192

Localizer

192

Logistic regression

192

Long bore

192

Long tau inversion recovery

193

Longitudinal magnetization

193

Longitudinal plane

193

Look-Locker

193

References

193

Lorentz force

193

Lorentzian shape

194

Low field

194

Low gamma (g) imaging

194

Low order phase

194

Low pass filtering

195

Lumirem

195

Lung MRI

195

References

195

M

196

Magic angle effect

196

Magic angle spinning

196

Magnet stability

196

Magnetic moment

196

Magnetic susceptibility

196

Magnetization

197

Magnetization transfer

197

Magnetization transfer ratio

197

Magnetization vector

197

Magnetite

197

Magnetogyric ratio

198

Magnetohemodynamic effect

198

Magnetophosphenes

198

References

198

Magnevist

198

Mangafodipir trisodium

198

Manganese

199

Manual shim

199

MAS

199

MAST

199

Matched bandwidth

199

Matrix

200

Maximum intensity projection

200

Maxwell pair

200

MDE

200

Mean diffusivity

200

MEDAL

201

MEDIC

201

MEG

201

MEMP

201

MERGE

201

MESS

202

Metabolite map

202

References

202

Metallic taste

202

Microscopy

202

Minimum intensity projection

203

MIP

204

MITR

204

Mixing time

204

MNS

204

MobiTrak

204

MOD

205

Moire fringes

205

Molecular imaging

205

Molecular tumbling rate

206

Moment

206

Morphological descriptors

206

References

206

Moses effect

207

MOTSA

207

Motion artifact

208

Motion correction

208

Moving saturation pulse

208

Moving table

208

MPR

208

MP-RAGE

208

MR compatible

209

References

209

MR cisternography

209

MR dosimetry

209

References

210

MR echo

210

MR-GILD

210

MR guided

211

MR mammography

211

References

211

MR myleography

212

MR simulator

212

MR thermometry

212

References

212

MR thermotherapy

212

MR oximetry

213

MR visible

213

MRA

213

MRE

213

MRCP

214

MRS

214

References

215

MRSI

215

MS-325

215

MSE

216

MSK imaging

216

mSENSE

216

mT/m

216

MT

217

MTF

217

References

217

MTT

217

MU

217

Multi-echo

217

Multi-nuclear spectroscopy

218

Multi-planar

218

Multi-slab

218

Multi-slice

218

Multi-voxel

218

MultiHance

219

Multi-channel

219

Multiple spin-echo

219

Multi-phase

219

Multi-shot

219

MULTIVANE

220

Musculoskeletal imaging

220

Mx, My, Mz

221

Myocardial tagging

221

Myo-inositol

221

N

222

NAA

222

NAAG

222

Nanoparticles

222

NATIVE

223

NAV

223

Navigator echo

223

NbTi

223

Needle artifacts

224

References

224

NEMA

224

Net magnetization

224

Neutron

225

NEX

225

Nickel

225

Niobium-titanium

225

Nitrogen

225

NMR

226

NOE

227

NOESY

227

No phase wrap

227

Noise

227

Normal mode

228

Normalization filter

228

NP

228

NSA

228

Nu

228

Nuclear overhauser effect

228

Nucleon

229

Null point

229

Nutation

229

Nyquist frequency

229

Nyquist ghosting

230

O

231

Occupational exposure

231

Oblique

231

OD

231

Off-center FOV

231

Off-resonance

232

Omega

232

Omniscan

232

OOPS

232

Open scanner

232

Optical pumping

233

Optical RF

233

OptiMARK

233

Optimized bandwidth

234

Oral contrast agent

234

Orbit X-ray

234

Orientation

235

Out-of-phase image

235

Outer k-space

235

Outer volume fat suppression

236

Overlay

236

Over-ranging

236

Oversampling

236

Oxford instruments

237

Oxygen

237

P

238

PACE

238

Pacemakers

238

PACS

238

Palatal stimulation

239

Paradigm

239

Paradoxical enhancement

239

Parahydrogen

239

Parahydrogen-induced polarization

239

References

240

Parallel imaging

240

References

241

Paramagnetic

241

Parameter map

241

Partial echo

241

Partial flip

242

Partial Fourier

242

Partial k-space

242

Partial NEX

243

Partial saturation

243

Partial volume

243

Parts per million

243

PASADENA

243

PASL

244

Passive shielding

244

Passive shimming

244

Patient right

244

Patient table

244

Patient weight

245

PBSG

245

PC

245

PD

245

Peak amplitude

245

Peak area

245

Peak area ratios

246

PEAR

246

Perflurocarbon

246

Perfusion

246

Perfusion imaging

247

References

247

Peripheral enhancement

247

Peripheral MRA

247

Peripheral nerve stimulation

248

References

249

Peripheral pulse gating

249

Peristaltic motion

249

Permanent magnet

250

Permeability

250

Permittivity

250

PERRM

250

Perspex

251

PET

251

PFI

251

PGSE

251

pH measurement

251

Phantom

252

References

253

Pharmacokinetic modeling

253

References

254

Phase

254

Phase correction

254

Phase contrast

254

Phase encoding

254

Phase sensitive demodulator

255

Phase (I, II, III…) trials

256

Phase wrap

256

Phased array

257

Phi

257

Philips

257

PHIP

257

Phosphocreatine

257

Phosphodiesters

257

Phosphorus

257

Photoplethysmograph

258

PI

259

Pianissimo

259

Picker

259

PILS

259

Pillar

259

Pixel

259

Planck’s constant

260

pMRI

260

PNR

260

PNS

260

Point spread function

260

POMP

261

Positional MRI

261

Positive enhancement integral

261

Posterior

261

ppm

261

PQRST wave

262

Preamp

262

Pre-emphasis

262

Precession

263

Precessional frequency

263

Pregnancy

263

Prepared

263

Pre-scan

263

PRESS

264

References

265

PRESTO

265

References

265

Primary image

265

Primovist

265

PROBE

266

Profile phantom

266

ProHance

266

Projectile

266

Projection fibers

268

Projection reconstruction

268

Prone position

268

PROPELLER

268

PROSE

269

PROSET

269

Proton

270

Proton decoupling

270

Proton density

270

Proton density weighted

270

References

271

Proximity limits

271

References

271

Pseudogating

271

Pseudolayering

272

References

272

PSF

272

PSIF

272

Pu

272

Pulse

272

Pulse Controller

273

Pulsed gradient spin echo

273

Pulse programming

273

Pulse sequence

273

Pulse sequence diagram

273

Pulse train

274

PURE

274

P-value

274

References

274

Q

275

Q

275

Quadrature

275

Quality factor

275

Quality assurance

276

References

276

Quadscan

277

Quadrupole-electric interactions

277

Quantum number

277

Quench

277

QUEST

278

Quiet

278

QUICK 3D

278

QUIPSS

278

R

279

R

279

R1

279

R2

279

R2*

279

RA

280

RADAR

280

Radial k-space

280

Radiotherapy

281

Radiotherapy planning

281

References

281

RACE

282

RADIANCE

282

Radians

282

RAM-FAST

283

Ramp up/down

283

Ramp sampling

283

Ramped RF pulses

283

RAPID

283

RARE

284

References

284

Raw data

284

Raysum

284

RC

284

Readout gradient

284

Real

285

Real time fMRI

285

Receiver

285

Reconstruction

285

Rectangular FOV

286

Reduced flip angle

286

Refocusing pulse

286

Reformat

286

Registration

288

Region-of-interest

288

Relative anisotropy

288

Relaxation

288

Relaxivity

290

Relief artifact

290

Repetition time

290

RES agents

290

Research mode

291

Residual water

291

Resistive magnet

291

Resolution phantom

291

Resonant frequency

292

Resonant offset artifacts

292

Resovist

293

Respiratory compensation

293

Respiratory gating

293

REST

293

RESTORE

293

Restricted diffusion

294

References

294

Reticuloendothelial system agents

294

REVEAL

294

Rewinding gradients

294

Reynolds number

294

RF

295

RF antenna

295

RF artifact

295

RF burns

295

References

296

RF cage

296

RF coil

296

RF effects

297

RF heating

298

References

298

RF penetration

298

RF power

298

RF pulse

299

RF shielding

299

RF shimming

299

RF spoiling

300

RFA

300

RFOV

300

RG

300

Rho

300

Rim enhancement

300

Ringing

300

RISE

301

Rise time

301

ROAST

301

ROC curve

301

RODEO

301

ROI

302

References

302

Rolling baseline

302

ROPE

302

Rotating frame

302

RR interval

303

S

304

Saddle coil

304

Safety limits

304

References

305

SAGE

305

Sagittal

305

Saline

306

Sampling rate

307

SAR

307

SARGE

307

Saturation bands

307

Saturation pulses

308

Saturation recovery

308

Saturated spins

308

Scalar coupling

308

Scan assistant

308

Scan percentage

309

Scan room

309

Scan time

309

Scanning, 4D

309

Scanogram

309

SCIC

309

Scout images

309

Screening

310

Screening constant

310

Screening form

310

Screenshot

310

SDNR

311

SE

311

Secondary image

311

Seed point

311

Segmentation

311

Segmented k-space

311

SENSE

312

References

312

Sensitive volume

312

Sequential

312

Sequential k-space filling

313

SG

313

Shaded surface display

313

Shielding

313

Shielding constant

313

Shim

314

Shimadzu

314

Shine through

314

Shinnar-Le-Roux

314

SHORT

315

Short bore

315

Short tau inversion recovery

316

Shot factor

317

Siemens (Healthcare)

317

Signal

318

Signal averaging

318

Signal difference to noise ratio

318

Signal-time curve

318

Signal-to-noise ratio

318

Silent word generation

318

Silicon

319

Silicon specific

319

Simultaneous excitation

319

Sinc shaped

319

Sinerem

320

Single dose

320

Single-shot

320

Single voxel

320

SINOP

321

Skin depth

321

Slab

321

Slew rate

321

Slice

322

Slice gap

322

Slice profile

322

Slice selection

322

Slice thickness

323

Slice warp

323

Slice width

324

SLIP

324

SLR

324

SMART

324

SMART Prep

324

SMASH

324

References

325

SNR

325

References

326

Sodium

326

References

327

Sodium chloride

327

Soft tissue

327

Solenoid

327

Source data

328

SPACE

328

SPAIR

328

SPAMM

328

Spatial domain

328

Spatial resolution

329

SPECIAL

329

Specific absorption rate

329

Spectral editing

329

Spectral resolution

329

Spectral-spatial pulse

330

Spectroscopy

330

Spectroscopic imaging

330

Spectrometer

330

Spectrum

330

SPEEDER

330

SPGR

331

SPIDER

331

Spin

331

Spin angular momentum

331

Spin density

331

Spin echo

331

Spin-lattice relaxation

332

Spin-spin coupling

333

Spin-spin relaxation

333

Spin quantum number

333

Spin states

333

Spin tagging

333

Spin up/spin down

333

Spinor

335

SPIO

335

SPIR

335

Spiral EPI

335

Spline

335

Splitting constant

336

Spoiling

336

Spurious peaks

336

SQ

336

SS

336

SSD

337

SSFP

337

SSP

337

SSRF

337

Stability

337

References

338

STAGE

338

STAIR

338

References

338

Staircase artifact

338

Standing wave artifact

339

Static field limits

339

Station

339

Statistical errors

339

References

339

Steady state

340

Steady-state sequence

340

Steal effect

340

STEAM

340

References

341

Stejskal–Tanner

341

References

341

Stepping table

341

Stereotactic

342

STERF

342

Stimulated echo

342

STIR

342

Storage time

343

Stray field

343

Streak artifact

343

Stress-perfusion agent

343

Stroke

343

Superconducting magnet

343

Superior

344

Supine position

344

Surface coil

344

Surface rendering

344

Surgical planning

345

References

345

Survey scan

345

Susceptibility

345

Susceptibility artifact

346

Susceptibility weighted imaging

346

SVS

347

SWAN

347

Sweep width

347

SWI

348

Syrinx

348

T

349

T1

349

T1-r

350

References

350

T1-weighted

350

T2

350

References

351

T2*

351

T2 map

352

References

352

T2 shine-through

352

T2-weighted

353

T2*-weighted

353

Tailored RF pulse

355

Talairach space

355

References

355

Tattoo

355

Tau

355

Tdel

355

TE

356

TE averaging

356

TEA-PRESS

356

Teleradiology

356

Temporal resolution

356

Tensor

357

Tesla

357

Teslascan

357

Test bolus

357

Test object

357

Tetramethylsilane

358

Textural analysis

358

References

358

TG

358

Threshold

358

THRIVE

359

TI

359

Time domain signal

359

Time-of-flight

359

Time-resolved MRA

359

Tip angle

360

TIM

360

TIMCT

360

TIRM

360

Titanium

360

TM

361

TMS

361

TNM staging

361

TOF

361

References

361

TONE

361

Toshiba (Medical Systems)

362

TR

362

Trace

363

TRAK, 4D

363

Tractography

363

References

363

Transaxial

364

TRANCE

364

Transceiver

364

Transcranial magnetic stimulation

364

References

364

Transit time

364

Transmitter

365

Transmitter reference voltage

365

Transparency

365

Transverse

365

Transverse magnetization

365

Transverse plane

365

Trapezoid

366

TRAPS

366

TRAQ

366

Travel SAT

366

TRICKS

366

Triggering

367

Trigger window

367

TRSG

367

True FISP

367

Truncation artifact

367

TSE

368

t-Test

368

Tumor

368

Tunnel

368

Turbo dark fluid

368

Turbo factor

369

Turbo FLASH

369

Twin gradients

369

TWIST

369

Two (three)-compartment model

369

References

369

Two-dimensional spectroscopy

370

Type I, II, III

370

U

371

Ultra-fast imaging

371

Ultra-short TE

371

Uniformity

371

URGE

372

USPIO

372

UTE

372

V

373

Vacuum bore

373

Variable bandwidth

373

Variable flip angle

373

VASC

373

Vasovist

374

Vectorcardiogram

374

Velocity encoding

374

VEMP

375

VenBOLD

375

VENC

375

Vent

375

Venetian blind artifact

375

Venography

376

Ventilation agent

376

Ventilation imaging

376

VERSE

376

Vertical bore

376

Vertigo

376

VFL

377

Viability imaging

377

VIBE

377

VIBRANT

377

VIE

378

VIEWS

378

VIPR

378

Virchow-Robin spaces

378

Virtual endoscopy

378

VISTA

378

Visual Prep

379

VINNIE

379

VOI

379

Voxel

379

Voxel bleeding

379

Voxel shifting

380

V/Q

380

VSS

380

W

381

Wada test

381

Walking SAT

381

Warning sign

381

Wash in (out)

381

Water

381

Water-fat shift

382

Water fraction

382

Water-only image

382

Water reference

382

Water suppression

382

WATS

383

Watt

383

Wavelength

384

Wave guides

384

Wave function

384

WEFT

384

Weighting

385

Weinmann data

385

References

385

Wernicke’s area

385

Whisper sequence

385

White blood

386

White matter fibers

386

Whole-body

386

Whole-body screening

386

Wide bore

387

Width

388

Windowing

388

X

389

Xenon

389

References

389

x-direction

389

Y

390

y-direction

390

Z

391

Z2 or Z4

391

z-direction

391

Z-score

391

Zebra artifact

391

Zeeman levels

391

Zero filling

392

Zeugmatography

392

ZIP

392

Zipper artifact

392

Zoom gradients

392

Zoom imaging

392