根據一項最新研究報道，已經在全球超過7千萬患者中使用的對比藥物碘普羅胺，無論其所需劑量或者體積，都能夠用于各種形式的計算機X線斷層掃描影像檢查。

在該項研究中，來自位于波士頓的Brigham和婦女醫院以及哈佛醫學院的科學家，評估了29508例出于各種原因接受碘普羅胺對比增強CT檢查的患者。在評估的患者中，有29297例并沒有因為使用對比增強劑而出現副作用。在211例出現不良反應的患者中，只有4例被定級為嚴重反應。該研究發表在2005年1月《美國X線放射性期刊》上。

根據這些科學家的說法，碘普羅胺或者動脈內或者靜脈內注射給藥，在美國已經應用了大約10年之久，但是直到現在，該藥只在按照特定劑量在某些特定檢查比如血管造影、腹部CT中明確了其安全性。

這篇論文的主要作者Koenraad J. Mortele醫生說：“我們開展這項研究的目的是闡明靜脈使用對比增強藥物的某些尚未被解決的問題，并在更大規模的患者中研究藥物的安全性。我們相信這項研究為這種特定藥物在大規模患者中的安全性提供了信息，并試圖對CT對比增強藥物的那些尚未解決的問題提供了答案?！?/P>

Common Contrast Agent Safe for CT Use
 
The contrast medium iopromide, which has been used on more than 70 million patients worldwide, can be used for all kinds of computed tomography (CT) imaging, regardless of the dosage or volume needed, according to a new study.

In the study, scientists from Brigham and Women’s Hospital and Harvard Medical School, both in Boston (MA, USA), assessed 29,508 patients who underwent contrast-enhanced CT with iopromide for a range of diagnostic reasons. Out of the patients examined, 29,297 suffered no unfavorable side effects due to the contrast agent utilized. Of the 211 who had adverse effects, only four were rated as severe. The study was published in the January 2005 issue of the American Journal of Roentgenology.

According to the scientists, iopromide has been available in the United States for approximately 10 years and can be administered either intra-arterially or intravenously, but until now its safety has only been established for certain procedures such as angiography and abdominal CT and only at specific dosage amounts.

“We undertook the study to clarify some unresolved questions about intravenous contrast agents and to have a benchmark study regarding the safety of the agent in a large group of patients,” said Koenraad J. Mortele, M.D., lead author of the article. “We believe this study provides insight into the safety of this specific contrast in a large group of patients and attempts to answer some of those unresolved questions regarding CT contrast agents,” added Dr. Mortele.