PH-31 MRI QA Phantom Instruction Manual Contents ● Before beginning Product contents and warning・・・・・・・ How to use the phantom・・・・・・・・ P. 2-P.3 ● Preparation How to fill with MRI solution・・・・・・・・・ How to fill with MRI solution - Warning How to use ● Contrast section・・・・・・・・・・・・・・ Uniformity section・・・・・・・・・・・・・ Quadrature setting section・・・・・・・・・ Slice thickness section・・・・・・・・・・...
Before beginning Product contents and warning Product contents Before your first use, ensure that your product includes all components listed below. f g Phantom unit A Petroleum jelly Phantom unit B Screwdriver Liquid paraffin (suitable for 3T) Dropper MRI contrast solution (nickel dichloride) Funnel *5 levels of concentration, 50mL per bottle (5, Extra screws 10, 15, 20, 25 millimole) Instruction manual Warning Please handle with care.The phantom is made...
Before beginning How to use the phantom How to use the phantom Phantom unit A Liquid capacity 3180mL Acrylic materials, Outer diameter 220mm Structural design Contrast section Uniform section Quadra-setting section Sample bottle (12.8mL) - 7 units total φ30 φ5 2...
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Before beginning How to use the phantom How to use the phantom Phantom unit B Liquid capacity 3300mL Acrylic materials, Outer diameter 220mm Structural design Distorted image section Slice section Uniform static magnetic field - 10 to 69 units Space resolution section φ0.5 φ0.75 φ1.0 φ2.0 3...
How to fill with MRI solution Preparation Warning How to fill with MRI solution 1. In order to avoid liquid leaks due to temperature changes, the phantom is not totally filled up with the solution at the time of delivery. First, remove one of the two plastic caps for the main unit of the phantom. Then insert the funnel into the hole to fill up the phantom pouring the paraffin solution (c) into the unit.
Setting Contrast How to Use Section Setting 1 - First fill up the main body of the phantom with the liquid paraffin and close the cap tightly. - The phantom shall be centered in the RF receiver coil, with its flat sides parallel to the designated scanning section.
How to Use Uniformity Section Uniformity Section 3 This section is for measurement of the signal to noise ratio (S/N), the image uniformity, and the RF uniformity. -Signal to Noise Ratio (S/N) Set the slide thickness at 10mm or below, and scan the section with the spin echo method at 3T≦...
How to Use Quadrature Setting Section Quadrature Setting Section 4 This section is used to detect irregularities in the quadrature setting. The section consists of a disc with a hole of 30mm diameter and 4 small marker holes which line across the center of the disc perpendicularly to the line from the 30mm hole.
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How to Use Slice Thickness Section Slice Thickness Section 5 The two wedge shaped planks in this section are to measure a slice thicknesses of 10mm or less. Both planks are of 15 degrees inclination angle and 20mm thickness. Scan the section with the maximum matrix number, in the conditions so that the TR represents more than three times T1.
How to Use Slice Thickness Section Slice Thickness Section 5 This target is to measure a slice thickness of 10mm or more. The target consists of two plates of 1mm thickness and 20mm width which make a right angle with each other.
How to Use Spatial Resolution Spatial Resolution 5 This target is to measure the spatial resolution. The target consists of two blocks placed in right angle with each other. On each block, each five pins of different diameters (0.50, 0.75, 1.00, 2.00 mm) are placed. The spaces between the pins are the same as the pins’...
Image Distortion and Static Magnetic Field How to Use Uniformity Section Image Distortion and Static Magnetic Uniformity Section 6 This section is to measure the image distortion and the static magnetic field uniformity. The phantom has 69 sticks of 10mm diameter with 10mm of space between each other placed in a grating pattern.
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T1 and T2 values Measurement method: value inversion recovery method for T1, and value multi echo method for T2. liquid paraffin 1.5 Tesla NiCl solution T1 value T2 value ※1.5 Tesla, Room temperature 23℃ Unit:[msec] Chart 1: T1 and T2 values for nickel dichloride solution and liquid paraffin on nuclear magnetic resonance liquid paraffin 3 Tesla NiCl...
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Uniformity Measurement method: value inversion recovery method for T1, and value multi echo method for T2. liquid paraffin NiCl solution 1.5 Tesla 17.7 3 Tesla 49.6 ※Room temperature 23℃ Unit:[%] Chart 3: Uniformity of nickel dichloride solution and liquid paraffin on nuclear magnetic resonance NiCl solution Liquid paraffin...
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