一種新型血管內(nèi)超聲波（IVUS）系統(tǒng)能夠?qū)崟r(shí)分析評(píng)估冠狀動(dòng)脈內(nèi)的粥樣斑塊。

VH IVUS技術(shù)是由Volcano集團(tuán)研制開發(fā)的，在Volcano系統(tǒng)中使用，或者作為全球范圍內(nèi)醫(yī)療中心安裝的Volcano IVUS系統(tǒng)的升級(jí)。

這種新工藝使用了復(fù)雜的光譜分析技術(shù)，能夠把超聲波影像的解釋分析變得十分簡(jiǎn)單，同時(shí)還能夠提供每位患者動(dòng)脈粥樣硬化斑塊的詳細(xì)的組成信息。彩色影像顯示4種斑塊組成類型：纖維脂肪、纖維性的、鈣質(zhì)沉積、以及壞死核心。使用Volcano影像控制臺(tái)和鷹眼黃金IVUS影像導(dǎo)管產(chǎn)生影像。影像能夠在導(dǎo)管實(shí)驗(yàn)室實(shí)時(shí)展現(xiàn)，當(dāng)患者仍然在檢查臺(tái)上的時(shí)候，介入心血管醫(yī)生和工作人員就能夠方便地進(jìn)行讀片。使用該系統(tǒng)無需對(duì)傳統(tǒng)地臨床實(shí)踐進(jìn)行改動(dòng)。這套工藝提供自動(dòng)測(cè)量工具，簡(jiǎn)化了影像解釋工作；在動(dòng)脈特定位點(diǎn)或者感興趣地區(qū)域，可以使用規(guī)定色彩鍵來展示它們地組成。

荷蘭Erasmus醫(yī)學(xué)中心胸科中心的Patrick W. Serruys教授評(píng)論說：“如今使用IVUS通常側(cè)重于提供血管和血管腔的幾何測(cè)量數(shù)據(jù)。由于IVUS只能顯示斑塊灰度，介入治療醫(yī)生對(duì)個(gè)體患者所見到的斑塊類型很難得出結(jié)論。使用VH IVUS所得到的斑塊影像將能夠提供重要信息，將改變我們?cè)\斷和治療心血管疾病患者的臨床規(guī)范。”

Ultrasound Assesses Plaque in Arteries
 
A new intravascular ultrasound (IVUS) system enables real-time compositional evaluation of atherosclerotic plaque in coronary arteries.

The VH IVUS technology, developed by Volcano Corp. (Rancho Cordova, CA, USA), is available on new Volcano systems or as an upgrade to Volcano’s installed base on IVUS systems in medical centers worldwide.

This new technology utilizes sophisticated spectral analysis techniques to allow simplified interpretation of ultrasound images and provide detailed information on the composition of each patient’s atherosclerotic plaque. The colorized images show four plaque component types: fibro-fatty, fibrous, dense calcium, and necrotic core. The images are created using Volcano’s imaging console along with the Eagle Eye Gold IVUS imaging catheter. Images are displayed live, in the cath lab, for easy review by the interventional cardiologist and staff while the patient remains on the table. No changes to conventional clinical practice are needed to use the system. The technology provides automated measurement tools to simplify image interpretation and employs a predetermined color key to display plaque composition on a specific point in the artery or across a region of interest.

“The use of IVUS today is generally focused on providing geometric measurements of the vessel and lumen. Due to IVUS’ inability to display plaques other than as grayscale renderings, interventionalists have had difficulty drawing conclusions about the plaque type seen in individual patients. Plaque imaging using VH IVUS will provide key information and may shift the paradigm of how we diagnose and manage patients with cardiovascular disease,” commented Prof. Patrick W. Serruys, from the Thoraxcentre, Erasmus Medical Center (Rotterdam, The Netherlands).