Protocoles Flashcards
Head - NECT
- Trauma, atrophy, hemorrhage, hydrocephaly, Stroke, dementia
- Just below base of skull to just above vertex
- Axial
- OML or Supraorbital meatal line
- WW: 100 WL:30
- Soft tissue & Bone
- Coronal & Sagittal
Head - CECT
- Abscess, neoplasm, epilepsy, aneurysm.
- 80-100 mL @ 1-2 mL/s
- 2 to 5 minute scan delay
- Axial
- OML or Supraorbital meatal line
- WW: 100 WL: 30
- Soft tissue & Bone
- Coronal & Sagittal
CTA - COW
- Acute stroke, aneurysm, vascular, arteriovenous malformation
- Group 1: NECT
- Group 2: arterial
- 80mL @ 4-5 mL/s
- 18 s delay or scan bolus
- ROI: C4 - Carotid
- C1 to vertex
- Helical
- WW: 140 WL: 40 - Posterior fossa
- Soft tissue
- Coronal, Sagittal & Oblique
Sinus - Routine - NECT
- Sinusitis, neoplasm
- Sella turcica (posterior) to frontal sinus (anterior)
- Helical
- WW: 350 WL: 50
- Soft tissue & Bone
- Coronal & Sagittal
Facial Bones - Trauma - NECT
- Trauma, fx, FB
- Inferior to mandible to frontal sinus
- Helical
- WW: 350 WL: 50
- Soft tissue & Bone
- Coronal & Sagittal
- WW: 4000 WL: 400
Neck - CECT
- Mass, abscess, lymphadenopathy (disease of lymph nodes), goiter (enlargement of thryoid)
- 100-125 mL @ 2-3 mL/s
- Split bolus: 50 mL @ 2 min delay, 75 mL
- 35 s delay
- Mid orbits to clavicular heads
- Helical
- Soft tissue
- Coronal & Sagittal
Neck - Angio
- Stroke, dissection, stenosis
- 80 ml @ 4-5 mL/s
- 18s delay or bolus tracking
- Aortic arch to sella turcica
- Helical
- Soft tissue - angio
- Coronal, Sagittal, MIP & VR
C-spine - Routine
- Trauma, mets, degeneration, fx, dislocation
- Base of skull to T2
- Helical
- WW: 350 WL: 50
- Soft tissue & bone
- Coronal & Sagittal
- WW: 4000 WL: 400
T-spine - Routine
- Trauma, mets, degeneration, fx, dislocation
- T1-T12
- Helical
- WW: 350 WL: 50
- Soft tissue & bone
- Coronal & Sagittal
- WW: 4000 WL: 400
L-spine - Routine
- Trauma, mets, degeneration, fx, dislocation
- L1-S1
- Helical
- WW: 350 WL: 50
- Soft tissue & bone
- Coronal, Sagittal, Obliques for discs
- WW: 4000 WL: 400
Thorax - Routine
- Infection, mass, emphysema, trauma, abnormality
- 80 Ml @ 3 mL/s
- 35 s delay
- Oral contrast may be given for known or suspected lung cancer (16 oz of barium sulfate)
- helical
- Soft tissue: WW:350 WL: 50
- Lungs: WW:1500 WL:-700
- Inspiration
High-resolution - Lungs
- Asbestos exposure, inhalation injury, interstitial disease, diffuse pulmonary disease, suspected bronchiectasis, suspected small airway disease
- Group 1: Supine, inspiration
- Group 2: Supine, expiration
- Group 3: Prone, inspiration
- Apices to costophrenic angles
- Helical
- Soft tissue: WW:350 WL: 50
- Lungs: WW:1500 WL:-700
- Bone
CTA- Thorax (for PE)
- 120 mL @ 4mL/s - Split bolus
- ROI: Pulmonary artery
- Apices to costophrenic angles
- Inspiration
- WW: 700 WL: 180 (vascular)
- Group 1
- Can use smart prep or test bolus
- Suspend respiration
- Group 2 - Run off
- 180 sec after the start of the injection
- Iliac crest to below tibial plateau
CTA- Aorta
- Blunt trauma, aortic dissection, aneurysm rupture, atherosclerotic occlusive disease, congenital vascular anomalies
- Cardiac helical
- Soft tissue: WW:350 WL: 50
- Vascular: WW:700 WL:180
- Group 1:
- 2cm above aortic arch to 2 cm inferior to celiac trunc
- no contrast
- inspiration
- Group 2 - Run off
- 2 cm above aortic arch to 2 cm below celiac trunc
- Contrast: 100 mL @ 4mL/s + 20 mL saline @ 4mL/s
- Delay: bolus or ROI in descending aorta at level of carina
Abdomen + Pelvis - Routine
- Masses, tumors, abscess, appendicitis
- 125 mL @ 3ml/s
- Delay of 65s
- Oral: 1.5 bottles of ready Cat
- Diaphragm to symph
- Helical
- WW: 400 WL: 50 - SOft tissue
- Inspiration
Liver- Arterial & Venous
-Hepatic tumprs, hypervascular, carcinoma, mets, melanoma, sarcoma
-Group1- Arterial
Contrast : 125 mL @ 4 mL/s + 50 mL saline @ 4mL/s
Oral: 450 mL 30 min before; 225 mL 10 minutes befor; 22 mL just before
-Group 2 - Venous
No contrast
65 sec scan delay
*3-phase liver = Hemangioma ; repeat group 2 600 (10 mins) seconds after IV injection
-Diaphragm to iliac crest
-Helical
-Soft tissue: WW:350 WL: 50
-Liver: WW:1500 WL:70
-Inspiration
Pancreas
-Pancreatitis, tumor
-Group 1 - Arterial
Contrast: 125 mL @ 4 mL/s; 50 mL saline @ 4mL/s
Delay: 40 s
Oral: 450 mL 30 min before; 225 mL 10 minutes befor; 22 mL just before
-Group 2 - Venous
No contrast
65 sec delay
-Diaphragm to iliac crest
-Soft tissue: WW:350 WL: 50
-Pancreas: WW:150 WL:70
-Inspiration
Colonography
-Evaluation of colon after a colonoscopy that was not successful
-Group 1: Supine
No IV contrast, inflate colon with CO2
-Group 2: Prone
Same as group 1
-Diaphragm to symph
-helical
-Soft tissue: WW:350 WL: 50
Stone protocol
-Renal stone or mass
-Group 1
No contrast
2cm above kidneys to 2 cm below kidneys
-Group 2: Mass
Above diaphragm to below symph
IV Contrast: 100 mL @ 3mL/s + 50 mL of saline @ 3mL/s
150 s scan delay
No oral contrast
-Helical
-Soft tissue: WW:350 WL: 50
-Inspiration
