SMR100模体 Magphan

深圳湾边贸易原厂进口Magphan SMR100模体，价格优惠！ SMR100模体参数：磁共振性能检测模体，丙烯酸材料的圆柱形模体和球形模体，内径20cm，模体内部加注硫酸铜溶液，检测空间分辨率(高分辨率)、密度分辨率(低对比度

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深圳湾边贸易原厂进口Magphan®MR Performance Phantoms.，Magphan SMR100模体，价格优惠！

SMR100模体参数：磁共振性能检测模体，丙烯酸材料的圆柱形模体和球形模体，内径20cm，模体内部加注硫酸铜溶液，检测空间分辨率(高分辨率)、密度分辨率(低对比度)、测信躁比、T1,T2值、几何线性等参数。 SMR100模体包括20cm的球形壳体、10cm的立方体试块。

美国厂家：The Phantom Laboratory美国模体实验室具体信息如下：

产品概况:
Ø 用途：主要用于MRI性能测试；

Ø 材质：内径20cm丙烯酸材料的圆柱形模体和球形模体，模体内部加注硫酸铜溶液；

Ø 检测参数：空间分辨率(高分辨率)、密度分辨率(低对比度)、测信躁比、T1,T2值、几何线性等；

Ø 方法：头/身躯复合性能测量模体，测量均匀性、噪声、水当量值、图象一致性.
smr100-2.jpg

Cylindrical and Spherical Magphans®
Precise, Comprehensive Testing of MRI Scanners
Magphan® Phantoms are designed to perform a wide range of precision performance evaluations of Magnetic Resonance Imaging (MRI) Scanners.

The design criteria for the Magphan® phantoms are based on physicist, Dr. David Goodenough's extensive experience with MRI system evaluation and his well documented research into the quantification of image system performance tests. The test objects that make up the current Magphan® models embody two decades of scientific evaluation and field experience.

The Magphan®'s patented spherical design combines precise alignment of spherical geometry with cubic geometry. As magnetic field characteristics are mapped according to spherical harmonics, natural magnetic fields extend to diagonally symmetric volumes (DSVs), or spheres. This symmetry is the reason the AAPM Task Group's Report number 6a, titled "Acceptance Testing of Magnetic Resonance Imaging Systems," stated, "The sperical shape is recommended for reasons of symmetry." Imaging performance is evaluated in the transaxial, coronal, sagittal and oblique planes by rotating the sphere.

The Magphan® is also available with a conventional cylindrical housing for test groups and manufacturers who prefer the conventional cylindrical shaped phantoms.

Spherical Magphan® (SMR100) is a urethane sphere composed of two hemispherical shells with an inner diameter of 20cm.

· The shells are connected with a simple threaded flange connecting ring. The test cube assembly can be quickly removed without tools for greater imaging flexibility and easy access for cleaning and maintenance.
Cylindrical Magphan® (SMR170) has a removable end plate for internal access. The acrylic cylinder has an outer diameter of 20cm and an inner diameter of 19cm.
Tests - Summary
spatial uniformity

· signal-to-noise ratio (SNR)

· spherical geometry

· in-vitro sample testing

· geometric distortion (spatial linearity)

· pixel (matrix) size verification

· scan slice width and contiguity

· verification of patient alignment system

· spatial resolution up to 11 line pairs per cm (0.45mm resolution)

· low contrast sensitivity

· T1 and T2 measurements

· evaluation of 3-dimensional volume reconstruction

Stock #	Description
SMR100	Magphan® 100 including 20cm spherical housing, 10cm test cube and case
SMR140	Magphan® 140 - 10cm sphere with support disk
SMR170	Magphan® 170 including 20cm cylindrical housing, 10cm test cube and case
SMR172	Magphan® 172 including 20cm spherical housing, 20cm cylindrical housing, 10cm test cube and cases.

源自：深圳市湾边贸易有限公司
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