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美國(guó)bidoex公司 pet-ct 模體包括內(nèi)部多款結(jié)構(gòu)（3根桿狀及其6個(gè)球面），當(dāng)二種形狀的影像產(chǎn)生時(shí)，可以校驗(yàn)影像的準(zhǔn)確性和 一致性。

同時(shí)，由水、骨及其ct對(duì)比度材料（及其空氣）制成的衰減放射水樣本可以判斷ct基礎(chǔ)上的pet衰減是否正常。

該模體應(yīng)用于：

pet/ct【敏感詞】spect/ct 質(zhì)量驗(yàn)收控制。

日常工作的 pet/ct 及其 spect/ct校驗(yàn)。

evaluation of new image fusion software.

evaluation of new attenuation correction algorithms.

aluminum tubes are for registration.

the outer 2" od micro cylinder is for comparing attenuation region to non attenuation region.

the 6" ring is for contrast solution.

research.

specifications:

main cylinder:

- interior length of phantom: 180 mm

- fillable spheres (5) inner diameter: 10 mm, 13 mm, 17 mm, 22 mm,【敏感詞】28 mm.

distance from sphere plane to inside wall: 70 mm

volume of empty cylinder: 9.7 liters

main cylindrical insert dimension:

- outside diameter: 51 mm

- length: 180 mm

top cylinder:

- cylinder outside diameter: ~5.1 cm

- cylinder inside diameter: ~4. cm

- cylinder inside height: ~8.2 cm

- cylinder outside height: ~12.0 cm

- volume of empty cylinder: 408 cm2

three aluminum tubes:

- one 5 inch long: ~1.7 cc

- two 7 inch (ea): ~ 2.5 cc

stepped bone ring:

- pre-filled with liquid bone composition, not to be opened

the volumes for the bone ring are:

- outer volume: 15.6 cu inch: ~256 cc

- inner volume: 6.7 cu inch: ~110 cc

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