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TERMS AND ABBREVIATIONS USED IN PART 2

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Wherever possible, generic terms have been used to describe protocol parameters, particularly pulse sequences and imaging options. Explanations of these can be found in the various sections of Part 1. To avoid ambiguity, the specific following terms have been used:

 Fat suppression: includes all fat suppression techniques such as fat saturation (FAT SAT), spectrally selective inversion recovery (SPIR) and Dixon methods.

 Gradient moment nulling (GMN): gradient moment rephasing (GMR) and flow compensation (FC).

 Oversampling: no phase wrap, anti‐aliasing and anti‐foldover

 Rectangular FOV: rectangular or asymmetric FOV

 Respiratory compensation (RC): phase reordering and respiratory triggering techniques

Abbreviations are used throughout the book for simplification purposes. A summary of these can be found in Table 1.1. In addition, Table 1.2 summarizes the slice prescription parameters for each examination in Part 2 and a comparison of acronyms used by certain vendors to describe pulse sequences and imaging options is given in Table 3.1 (see Pulse sequences in Part 1).

Table 1.1 Abbreviations used in this book.

A Anterior
AC Number of acquisitions
ACL Anterior cruciate ligament
ACPC Anterior–posterior commissure axis
ACR American College of Radiologists
ADC Apparent diffusion coefficient
ADEM Acute disseminating encephalomyelitis
AIDS Autoimmune deficiency syndrome
ASIS Anterior superior iliac spine
ASTM American Society for Testing and Materials
AVM Arteriovenous malformation
AVN Avascular necrosis
BFFE Balanced fast field echo
BGRE Balanced gradient echo
BOLD Blood oxygenation level dependent
CDH Congenital dislocation of the hips
CE‐MRA Contrast enhanced magnetic resonance angiography
CNR Contrast to noise ratio
CNS Central nervous system
COPD Chronic obstructive pulmonary disease
CSE Conventional spin echo
CSF Cerebral spinal fluid
CSI Chemical shift imaging
CSR Chemical shift ratio
CT Computer tomography
CVA Cerebral vascular accident
DE Prep Driven equilibrium magnetization preparation
DTI Diffusion tensor imaging
DWI Diffusion weighted imaging
EAM External auditory meatus
ECG Electrocardiogram
EKG Electrocardiogram (US spelling)
EPI Echo planar imaging
ETL Echo train length
FA Fractional anisotropy
FAT SAT Fat saturation
FC Flow compensation
FDA Food and Drug Administration
FFE Fast field echo
FID Free induction decay
FIESTA Free induction echo stimulated acquisition
FISP Free induction steady precession
FLAIR Fluid attenuated inversion recovery
FLASH Fast low angled shot
fMRI Functional magnetic resonance imaging
FOV Field of view
FSE Fast spin echo
Gd Gadolinium
GFE Gradient field echo
GMN Gradient moment nulling
GMR Gradient moment rephasing
GRASS Gradient recalled acquisition in the steady state
GRE Gradient echo
GRE‐EPI Gradient echo – echo planar imaging
HASTE Half acquisition single‐shot turbo spin echo
HIE Hypoxic ischemic event
I Inferior
IAM Internal auditory meatus
ICP Intracranial pressure
IM Intramuscular
IR Inversion recovery
IR‐FSE Inversion recovery – fast spin echo
IR prep Inversion recovery magnetization preparation
IV Intravenous
IVC Inferior vena cava
L Left
MDA Medical Devices Agency
MIP Maximum intensity projection
MOTSA Multiple overlapping thin slab acquisition
MP RAGE Magnetization prepared rapid acquisition gradient echo
MR Magnetic resonance
MRA Magnetic resonance angiography
MRCP Magnetic resonance cholangiopancreatography
MRE Magnetic resonance enterography
MRI Magnetic resonance imaging
MRS Magnetic resonance spectroscopy
MS Multiple sclerosis
MSK Musculoskeletal
MT Magnetization transfer
MVS Multi‐voxel spectroscopy
NEX Number of excitations
NSA Number of signal averages
NSF Nephrogenic systemic fibrosis
P Posterior
PC Phase contrast
PC‐MRA Phase contrast magnetic resonance angiography
PD Proton density
Pe Peripheral
PEAR Phase encoding artefact reduction
PET Proton emission tomography
ppm Parts per million
PRESS Point resolved spectroscopy
PSIF Reverse FISP
R Right
RC Respiratory compensation
REST Regional saturation technique
RF Radio frequency
ROI Region of interest
RR R to R interval
S Superior
SAR Specific absorption rate
SAT Saturation
SE‐EPI Spin echo – echo planar imaging
SNR Signal to noise ratio
SPAMM Spatial modulation of magnetization
SPGR Spoiled gradient recalled acquisition in the steady state
SPIR Spectrally selective inversion recovery
SS Single shot
SS‐EPI Single‐shot echo planar imaging
SSFP Steady‐state free precession
SS‐FSE Single‐shot fast spin echo
SS‐GRE‐EPI Single‐shot gradient echo EPI
STEAM Stimulated echo acquisition mode
STIR Short TAU inversion recovery
SVS Single‐voxel spectroscopy
SW Susceptibility weighted
TE Time to echo
TF Turbo factor
TFE Turbo field echo
TI Time to inversion
TIA Transient ischaemic attack
TLE Temporal lobe epilepsy
TMJ Temporomandibular joint
TOF Time of flight
TOF‐MRA Time of flight magnetic resonance angiography
TR Time to repeat
True FISP Siemens version of balanced gradient echo
TSE Turbo spin echo
VENC Velocity encoding
VNR Velocity to noise ratio
VOI Volume of interest
VQ Ventilation perfusion scan

Table 1.2 Summary of slice prescription criteria.

Area Plane Angle Prescription Coverage
Brain Sagittal parallel to falx cerebri lateral borders of each temporal lobe foramen magnum to vertex and occiput to frontal lobe
Axial parallel to falx cerebri and ACPC line foramen magnum to superior surface of the brain occipital lobe to frontal lobe and both temporal lobes
Coronal perpendicular to ACPC line cerebellum to frontal lobe foramen magnum to vertex and both temporal lobes
Temporal lobes Sagittal parallel to falx cerebri lateral borders of each temporal lobe foramen magnum to vertex and occiput to frontal lobe
Axial parallel to temporal lobes and falx cerebri inferior aspect of temporal lobes to superior border of body of corpus callosum occipital lobe to frontal lobe and both temporal lobes
Coronal perpendicular to axial slices and parallel to falx cerebri posterior cerebellum to anterior border of genu of corpus callosum foramen magnum and vertex and both temporal lobes
IAMs and posterior fossa Sagittal parallel to falx cerebri through IAMs on both sides foramen magnum to superior body of corpus callosum and both temporal lobes
Axial perpendicular to falx cerebri and parallel to both IAMs through the IAMs and posterior fossa occipital lobe to frontal lobe and both temporal lobes
Coronal parallel to falx cerebri and a line between both IAMs posterior border of cerebellum to clivus foramen magnum to vertex and both temporal lobes
Pituitary fossa Sagittal parallel to falx cerebri through the pituitary fossa inferior edge of sphenoid sinus to the superior portion of the lateral ventricles
Axial parallel to falx cerebri floor of the pituitary fossa to circle of Willis occipital lobe to frontal lobe and both temporal lobes
Coronal parallel to falx cerebri posterior to anterior clinoids inferior border of sphenoid sinus to superior portion of lateral ventricles and both temporal lobes
Orbits Sagittal parallel to rectus muscles and parallel to optic nerve (single orbit) left to right lateral walls of bony orbit or entire brain (optic neuritis) foramen magnum to vertex and from occipital to the frontal lobe
Axial perpendicular to falx cerebri (in true plane or orientated to optic nerve) inferior margin to above superior margin of orbits lens of eye, globe, optic nerves and chiasm
Coronal perpendicular to optic nerve optic chiasm to lens of the orbit left and right lateral walls of the orbit
Paranasal sinuses Sagittal perpendicular to hard palate through paranasal sinuses foramen magnum to vertex
Axial perpendicular to nasal septum inferior border of maxillary sinuses to superior edge of frontal sinuses sphenoid sinus, tip of nose and lateral borders of all paranasal sinuses
Coronal perpendicular to hard palate posterior portion of sphenoid sinus to tip of nose inferior margin of maxillary sinuses to superior border of frontal sinuses
Pharynx Sagittal parallel to cervical spine left to right lateral walls of pharynx skull base to thyroid cartilage
Axial perpendicular to cervical spine thyroid cartilage to base of skull soft tissues of neck
Coronal parallel to cervical spine posterior border of cervical cord to anterior surface of neck skull base to sternoclavicular joints
Larynx Sagittal parallel to cervical spine left to right skin surfaces of the neck superior border of hard palate to sternoclavicular joints
Axial parallel to vocal cords through laryngeal cartilages and vocal cords both lateral skin surfaces of the neck
Coronal perpendicular to vocal cords posterior surface of trachea to anterior surface of neck superior border hard palate to sternoclavicular joints
Thyroid/parathyroid Axial perpendicular to cervical spine through thyroid both lateral skin surfaces of neck
Coronal parallel to cervical spine through thyroid mandible to arch of the aorta
Salivary glands Sagittal parallel to cervical spine left to right skin surfaces of the neck base of the skull to hyoid bone
Axial perpendicular to cervical spine from superior aspect of EAM to angle of jaw or through submandibular glands all skin surfaces of neck
Coronal perpendicular to hard palate and nasal septum vertebral bodies to superior alveolar process cervical lymph node chain and skull base
TMJs Sagittal perpendicular to mandibular condyles and parallel to long axis of mandibular condyle through each TMJ both TMJs
Axial orthogonal through both TMJs both TMJs
Coronal parallel to mandibular condyles through both TMJs both TMJs
Cervical spine Sagittal parallel to long axis of spinal cord from left to right lateral borders of vertebral bodies base of skull to T2
Axial perpendicular to spinal cord and either parallel to disc space or perpendicular to lesion lamina below to lamina above disc bony cervical spine and surrounding soft tissue
Coronal parallel to long axis of spinal cord posterior aspect of spinous processes to anterior border of vertebral bodies base of skull to T2 and left to right borders of neck
Thoracic spine Sagittal parallel to the long axis of the spinal cord from left to right lateral borders of vertebral bodies C7 to conus
Axial perpendicular to spinal cord and either parallel to disc space or perpendicular to lesion lamina below to lamina above disc bony thoracic spine and surrounding soft tissue
Coronal long axis of spinal cord posterior aspect of spinous processes to anterior border of vertebral bodies C7 to conus
Lumbar spine Sagittal parallel to spinal canal left to right lateral borders of vertebral bodies conus to sacrum
Axial parallel to each disc space lamina below to lamina above disc exit foramina from T12 to S1
Coronal parallel to long axis of spinal canal posterior aspect of spinous processes to anterior border of vertebral bodies conus to sacrum
Whole spine Sagittal parallel to long axis of spinal cord left to right lateral borders of vertebral bodies base of skull to sacrum
Axial parallel to spinal cord base of skull to sacrum or ROI bony spine and surrounding soft tissue
Lungs and mediastinum Coronal orthogonal posterior chest muscles to sternum apices to lung bases
Axial orthogonal apices to lung bases entire chest to skin surfaces
Heart and great vessels Coronal orthogonal posterior chest muscles to sternum apices to lung bases
Axial orthogonal inferior border of heart to superior aspect of arch of aorta entire chest to skin surfaces
LA view parallel to intraventricular septum through left ventricle entire chest cavity
Four chamber through apex of left ventricle and mitral valve through left ventricle entire chest cavity
SA view parallel to mitral valve through left ventricle entire chest cavity
Thymus Axial orthogonal through thymus entire chest to skin surfaces
Breast Sagittal orthogonal sternum to axilla superior axillary tail to nipple and pectoralis muscle and chest wall
Axial orthogonal superior axillary tail to inferior margins of breast(s) superior axillary tail to nipple and pectoralis muscle and chest wall
Axilla Sagittal orthogonal from sternoclavicular joint to humerus both axillae or single axilla
Axial orthogonal through both axillae and supraclavicular fossae both axillae
Coronal orthogonal posterior chest muscles to sternum both axillae
Brachial plexus Sagittal perpendicular to long axis of symptomatic brachial plexus spinal cord to medial aspect of humerus C3 to aortic arch
Axial perpendicular to long axis of C4 to C7 arch of aorta to C3 both shoulders and anterior neck
Coronal parallel to long axis of C4 to C7 posterior aspect of cervical cord to sternoclavicular joints C3 to aortic arch
Liver/biliary system Coronal orthogonal posterior abdominal peritoneum to anterior abdominal wall pubis symphysis to diaphragm
Axial orthogonal diaphragm to inferior margin of liver whole abdomen to skin surfaces
Kidneys/adrenals Coronal orthogonal posterior abdominal peritoneum to anterior abdominal wall pubis symphysis to gastric ventricle
Axial orthogonal inferior margin of kidneys to superior aspect of adrenals whole abdomen to skin surfaces
Pancreas Coronal orthogonal posterior abdominal peritoneum to anterior abdominal wall pubis symphysis to gastric ventricle
Axial orthogonal through pancreas whole abdomen to skin surfaces
Bowel Coronal orthogonal from posterior abdominal peritoneum to anterior abdominal wall pubis symphysis to the gastric ventricle
Axial orthogonal gastric ventricle to pubis symphysis whole abdomen to skin surfaces
Prostate Sagittal perpendicular to prostatic/rectal junction left to right margins of prostate and seminal vesicles pubis symphysis to iliac crests
Axial orthogonal or perpendicular to prostatic/rectal junction pelvic floor to above seminal vesicles prostate gland and surrounding structures
Coronal parallel to prostatic/rectal junction posterior margin of prostate to symphysis pubis pubis symphysis iliac crests
Rectum and testes Coronal orthogonal coccyx to anterior border of pubis symphysis pubis symphysis to iliac crests
Axial orthogonal pelvic floor to iliac crests or through ROI buttocks and rectum and to skin surfaces
Ovaries and cervix Coronal orthogonal coccyx to anterior border of pubis symphysis pubis symphysis iliac crests
Sagittal orthogonal left to right pelvic side walls pubis symphysis to the iliac crests
Axial orthogonal pelvic floor to iliac crests or through ROI whole pelvis to skin surfaces
Shoulder Coronal parallel to supraspinatus muscle tendon infraspinatus posteriorly to supraspinatus anteriorly superior edge of acromion to inferior aspect of subscapularis muscle, deltoid muscle and distal third of supraspinatus muscle
Sagittal parallel to supraspinatus tendon medial to glenoid cavity to bicipital groove distal portion of joint capsule to superior border of acromion
Axial orthogonal from superior acromioclavicular joint (including the supraspinatus muscle) to inferior margin of glenoid bicipital groove to distal supraspinatus muscle
Humerus Coronal parallel to long axis of humerus and aligned with glenohumeral joint or humeral epicondyles glenoid to proximal radius and ulna whole humerus to skin surfaces
Sagittal parallel to long axis of humerus and aligned with glenohumeral joint or humeral epicondyles glenoid to proximal radius and ulna whole humerus to skin surfaces
Axial perpendicular to long axis of the humerus to include lesions seen on coronal or sagittal images whole humerus or through ROI
Elbow Coronal parallel to a line joining humeral epicondyles posterior to anterior skin surfaces whole elbow joint to skin surfaces
Sagittal perpendicular to a line joining humeral epicondyles medial to lateral borders of elbow whole elbow joint to skin surfaces
Axial perpendicular to long axis of humerus and forearm distal humerus to proximal radius and ulna whole elbow joint to skin surfaces
Forearm Coronal parallel to humeral epicondyles or to distal radio‐ulnar joint posterior to anterior margins of forearm whole of forearm from wrist to elbow
Sagittal perpendicular to humeral epicondyles or to distal radio‐ulnar joint posterior to anterior margins of forearm whole of forearm from wrist to elbow
Axial perpendicular to coronal slices well above and below lesions seen in sagittal and coronal planes whole forearm to skin surfaces
Wrist and hand Coronal parallel to proximal row of carpus left to right skin surfaces of wrist inferior border of carpal bones to distal portion of forearm
Sagittal perpendicular to coronal plane left to right skin surfaces of wrist inferior border of carpal bones to distal portion of forearm
Axial parallel to proximal row of carpal bones through ROI distal radioulnar joint to include triangular fibrocartilage
Hips Coronal angled to compensate for positional rotation of pelvis, demonstrating femoral heads equally on each side posterior to anterior margins of musculature of hip junction of ilium and superior acetabulum to below lesser trochanter
Sagittal perpendicular to superior surface of femoral head lateral aspect of greater trochanter through articular portions of acetabulum proximal margin of femoral shaft (below the lesser trochanter) to greater sciatic notch
Axial parallel to superior surface of both femoral heads above articular portion of acetabulum to superior edge of lesser trochanter junction of ilium and superior acetabulum to below lesser trochanter
Femur Coronal parallel to long axis of femur anterior to posterior skin surfaces of thigh entire length of femur
Sagittal parallel to the long axis of the femur from the left to right skin surfaces of the thigh entire length of femur
Axial perpendicular to long axis of the femur prescribed to extend from well below, to well above lesions seen on coronal or sagittal images entire thigh to skin surfaces
Knee Coronal parallel to posterior surfaces of femoral condyles femoral condyles to anterior margin of patella superior edge of patella to inferior edge of tibial tuberosity
Sagittal parallel with ACL lateral to medial collateral ligaments superior edge of patella to below tibial tuberosity
Axial perpendicular to posterior surfaces of femoral condyles superior surface of patella to tibial tuberosity entire knee to skin surfaces
Tibia and fibula Coronal parallel to interosseous ligament posterior to anterior skin surfaces of calf whole of tibia and fibula to skin surfaces
Sagittal perpendicular to the interosseous ligament left to right skin margins of calf whole of tibia and fibula to skin surfaces
Axial perpendicular to long axis of the tibia well above and below lesions seen in sagittal and coronal planes whole calf to skin surfaces
Ankle Coronal parallel to transmalleolar line Achilles tendon to base of proximal metatarsals inferior border of calcaneum to distal portion of tibia
Sagittal parallel to mortise axially, to distal tibia coronally from the lateral to medial aspects of the ankle distal tibia to the sole of the foot and the tarsometatarsal joints
Axial perpendicular to long axis of distal tibia superior margin of tibiofibular margin to bottom of calcaneum and base of fifth metatarsal entire ankle joint to skin surfaces
Foot Coronal proximally parallel to bases of the first to fourth metatarsals metatarsophalangeal joints to tarsometatarsal joints whole foot to skin surfaces
Sagittal perpendicular to plane joining base of first to fourth metatarsals lateral to medial aspects of foot sole of foot to distal tibia
Axial perpendicular to metatarsals metatarophalangeal joints to tarsometatarsal joints whole foot to skin surfaces

Handbook of MRI Technique

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