Neuro Test 1 Unit 3 (USAHS) Questions and Answers

Neuro Test 1 Unit 3 (USAHS) Questions and Answers What are the 3 most common imaging modalities? - ANSWER ️️ CT, MRI, and neruoangiography. Most CT and MRI are? - ANSWER ️️ 2D slices What are the 3 imaging planes? - ANSWER ️️ Horizontal (axial), coronal, Sagittal MRI scans are? - ANSWER ️️ True horizontal slices What was CT scan developed from? - ANSWER ️️ Conventional Xray What does CT measure? - ANSWER ️️ Density of tissues What are the differences b/w CT and conventional Xray? - ANSWER ️️ - Slices are obtained simultaneously - Multiple xray beams pass through pt from different angles. - Densities are displayed as cross section image of head. How does bone/dense structures show up on conventional X-rays? - ANSWER ️️ White = hyper dense How does air/less dense structures show up on conventional X-rays? - ANSWER ️️ Black = hypodense How does immediate dense structures show up on conventional X-rays? - ANSWER ️️ Gray = isodense (CSF)