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CT Imaging: Basic Technical Concepts

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Radiology Frameworks

Computed tomography (CT) imaging utilizes various scanning and presentation parameters to generate detailed crosssectional images of the body. Adjusting these parameters is a balance between image quality and radiation dose. Radiologists and technologists carefully optimize these parameters based on the clinical needs of each individual patient, aiming to achieve a balance between diagnostic image quality and minimizing radiation exposure.

Chapters:
00:00 Introduction
01:12 XRay Tubes work like Incandescent Light Bulbs
04:28 Tube Current
05:08 Gantry Rotation Time
05:59 Tube CurrentTime Product (mAs)
06:27 Peak Tube Voltage (kVp)
07:28 Field of View (FOV)
09:19 Coverage
11:35 Acquisition Mode
12:42 Pitch
13:56 Reconstruction Algorithm
16:34 Convolution Algorithm (Kernel)
17:14 Slice Thickness & Interval
18:47 Window Width & Level
24:41 Effects of Scanning & Presentation Parameters
28:10 CTDIvol & DLP
30:11 Indications for IV Contrast
31:12 Adverse Outcomes from IV Contrast
33:37 Intravenous Accesses
35:28 IV Contrast Injection Volumes
35:59 Injection Delays & Bolus Tracking
39:04 Oral Contrast

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