美國(guó)RSD RS-240血管造影頭部模體
三維高對(duì)比度血管圖案
全或半頭
組織當(dāng)量材料
階梯楔和分辨率測(cè)試模式
不透明或透明

美國(guó)RSD RS-240血管造影頭部模體填補(bǔ)了物理和解剖信息需求之間的差距。在組織等效材料模型中，精確的男性顱骨包含三維  高對(duì)比度血管模擬，以促進(jìn)放射科醫(yī)師對(duì)血管造影圖像質(zhì)量的主觀評(píng)估與在相同暴露條件下實(shí)際測(cè)量分辨率和對(duì)比度的相關(guān)性。



每個(gè)RSD RS-240血管造影頭部模體包含一個(gè)5步楔形。2-10線對(duì)/ mm測(cè)試圖案是可選的。其他模式或測(cè)試對(duì)象和自定義病理可以按照特殊順序提供。

RSD RS-240血管造影頭部模體提供了一個(gè)“空運(yùn)行”，以完全檢查血管造影設(shè)備，并確保在對(duì)患者進(jìn)行放射性程序之前，在所有重要細(xì)節(jié)上都能令人滿意地運(yùn)行。如果成像系統(tǒng)發(fā)生故障，幻像在隔離和驗(yàn)證糾正問題方面也起著至關(guān)重要的作用。血管造影頭影像將變量局限于組件和技術(shù)，是一種寶貴的服務(wù)和教學(xué)工具。

獨(dú)特的RSD軟組織等效材料被用于皮膚組織和頸部，并被調(diào)整為顱內(nèi)的腦密度。這種材料在放射性吸收和散射特性中密切重復(fù)腦組織。模體幾乎是防碎的。

高對(duì)比度的三維血管圖案被放置在中間平面中。該模式在其早期階段與內(nèi)部頸動(dòng)脈動(dòng)脈造影非常相似。血管造影模式的放射密度已被調(diào)整為代表75％的造影劑?；孟罂梢匀轿皇褂谩?br />
血管造影頭像可以是全頭或半頭。完整的頭部具有代表人體頭部的全散射特性和主體對(duì)比度的優(yōu)點(diǎn)。半頭模型非常適合非網(wǎng)格技術(shù)。它具有重量更輕，成本更低，尺寸更小的優(yōu)點(diǎn)，可以輕松裝入公文包中。

模擬血管圖案，分辨率圖和stepwedge的組合使得用戶能夠?qū)⑽锢韰?shù)（例如分辨率，對(duì)比度和速度）與顱骨標(biāo)記和血管細(xì)節(jié)的主觀評(píng)估相關(guān)聯(lián)。

RSD RS-240血管造影頭部模體有透明或不透明的型號(hào)。



ANGIOGRAPHIC HEAD PHANTOMS

3-dimensional high-contrast vascular pattern
Full or half-head
Tissue equivalent materials
Step wedge and resolution test patterns
Opaque or transparent
Alderson ANGIOGRAPHIC HEAD PHANTOMS bridge the gap between physical and anatomical information requirements. Molded in tissue equivalent material, an accurate male skull contains a 3-dimensional,  high-contrast vascular simulation to facilitate correlation of the radiologist's subjective evaluation of angiographic image quality with actual measurements of resolution and contrast under the same exposure conditions.

Each ANGIOGRAPHIC HEAD PHANTOM contains a 5-step wedge. A 2-10 line pair/mm test pattern is optional. Other patterns or test objects and custom pathologies are available on special order.

The ANGIOGRAPHIC HEAD PHANTOM provides a "dry run" to completely check out angiographic equipment and ensure that is operating satisfactorily in all significant details before subjecting patients to radiological procedures. If the imaging system malfunctions, the phantom also plays a critically important role in isolating and verifying correction of the problems. The ANGIOGRAPHIC HEAD PHANTOM confines the variables to components and technique and is an invaluable service and teaching tool.

Unique RSD soft-tissue equivalent material is used for the skin tissue and neck and is adjusted to brain density in the cranium. This material closely duplicates brain tissues in radio-absorptive and scatter properties. The phantom is virtually shatterproof.

A high contrast 3-dimensional vascular pattern is placed in the median plane. The pattern closely resembles an internal carotid arteriogram in its early phase. The radio-density of the angiographic pattern has been adjusted to represent a 75% contrast-media. The phantom can be used omnidirectionally.

The ANGIOGRAPHIC HEAD PHANTOM is available as either a full or half head. The full head has the advantage of representing the full scatter properties and subject contrast of a human head. The half-head model is well suited to non-grid techniques. It has the advantages of lighter weight, lower cost and smaller size, easily fitting into a briefcase.

The combination of the simulated vascular pattern, resolution chart, and stepwedge enables the user to correlate physical parameters (such as resolution, contrast and speed) with the subjective evaluation of the skull markings and the vascular detail.

The ANGIOGRAPHIC HEAD PHANTOM is available in either transparent or opaque models.

MODEL NUMBERS
RS-230
Opaque Full Angiographic Head with stepwedge
RS-230T
Transparent Full Angiographic Head with stepwedge RS-235
Opaque Full Angiographic Head with resolution test pattern (2-10 1p/mm) and stepwedge
RS-235T
Transparent Full Angiographic Head with resolution test pattern (2-10 1p/mm) and stepwedge

RS-240
Opaque Half Angiographic Head with stepwedge
RS-240T
Transparent Half Angiographic Head with stepwedge
RS-245
Opaque Half Angiographic Head with resolution test
pattern (2-10 1p/mm) and stepwedge
RS-245T
Transparent Half Angiographic Head with resolution test pattern (2-10 1p/mm) and stepwedge