【產(chǎn)品特點(diǎn)Key Features】
該模體固定在可調(diào)節(jié)的支撐架上,可適用于所有廠家生產(chǎn)的探測線圈。

T1弛豫仿體 T?Relaxaton Mimic
-4層交替的乳腺纖維組織及脂肪仿體,用于模擬T1擴(kuò)散(100ms-1900ms)
4 layers of alternating fibroglandular and fat mimics with T1 spread (100ms-1900ms)
-12個(gè)注入乳腺纖維T1、并被本底脂肪模擬物環(huán)繞的球體
12 spheres filled with fibroglandular T? surrounded by bulk fat mimic
-12個(gè)注入脂肪模擬物、并被本底乳腺纖維模擬物環(huán)繞的球體
12 spheres filled with fat mimic surrounded by bulk fibroglandular mimic

彌散仿體 Diffusion Mimic
-12個(gè)分別注入0, 10, 25或40%聚乙烯吡咯烷酮(PVP)水溶液管用以模擬彌散效應(yīng)
12 tubes filled with 0, 10, 25 or 40% aqueous PVP soluton to mimic diffusion
- 4個(gè)注入脂肪模擬物的管 4 tubes filled with fat mimic
- 本底溶液為乳腺纖維T1模擬物 Bulk soluton is fibroglandular T1 mimic
- 分辨率測試圖由一系列直徑2mm至10mm的孔構(gòu)成
Resolution pattern with holes ranging from 2 mm to 10 mm

定量核磁共振乳腺成像模體可對以下定量進(jìn)行評估:
- B1均勻性 B1 Non-uniformity
- B0均勻性 B0 Non-uniformity
- 幾何線性度 Geometric linearity
- 梯度幅值 Gradient Amplitude
- 系統(tǒng)中心頻率漂移(短持續(xù)時(shí)間) System Center Frequency Drift (short time duration)
- 分辨率(高對比度檢測能力) Resolution (High-contrast detectability)
- 信噪比(低對比度檢測能力) SNR(Low-contrast detectability)
- T1 及T2 測量的準(zhǔn)確性度和精密度
Accuracy and precision of T1 and T2 measurements
- 表觀擴(kuò)散函數(shù)(ADC)的準(zhǔn)確性度和精密度
Accuracy and precision of the Apparent Diffusion Coefficient

美國核磁共振性能檢測模體 qMRI定量核磁共振乳腺模體 HPD BP131型