micro CT 軟組織顯影對比劑 | ExiTron™ 系列
突破傳統骨骼掃描限制,開啟軟組織影像新視野
Viscover 提供業界最完整的臨床前 micro CT 顯影劑產品線。ExiTron™ 系列對比劑專為實驗動物研究設計,運用創新奈米材料技術,為 micro CT 帶來長久以來所需的軟組織對比效果(soft-tissue contrast)。這些新穎的奈米材料將任何 micro CT 的應用範圍延伸至遠超傳統骨骼掃描的領域。
滿足 CT 研究多元需求的獨特產品組合
ExiTron™ 創新對比劑系列能輕鬆實現腫瘤與器官的標靶高解析度影像(targeted high-resolution imaging)。
主要應用範圍(Application Spectrum):
- 卓越高解析度 CT 血管造影(High-resolution CT angiography)
- 長期器官特異性影像(Long-term organ-specific imaging) - 肝臟/脾臟(liver/spleen)
- 心血管病理監測(Monitoring of cardiovascular pathologies)
- 腫瘤血管化與血管新生研究(Tumor vascularization and angiogenesis studies)
- 棕色脂肪組織影像(Imaging of brown adipose tissue)
- PET/CT 影像研究 - 增強軟組織 CT 對比(PET/CT imaging studies with enhanced soft-tissue CT contrast)
- 療效監測(Therapeutic efficacy monitoring)
ExiTron™ nano 6000
Liver imaging CT agent - 肝臟影像專用 CT 對比劑

訂購資訊 Order Information
| 貨號 Order No. | 130-095-146 (1 x 5 injections) |
| 130-095-147 (5 x 5 injections) |
產品簡介 Product Overview
ExiTron™ nano 6000 是業界領先的肝臟影像 CT 對比劑。僅需單次注射 100 µL,即可提供長達數週的持久肝臟對比效果。這款創新奈米顆粒對比劑專為肝臟影像、肝腫瘤與轉移瘤檢測設計,能快速被 Kupffer 細胞(庫弗氏細胞)吞噬,實現數週的肝臟組織視覺化。
主要特性 Key Features
- 長效顯影:單次注射後可持續數週顯影(visualization for several weeks after injection)
- 低注射劑量:僅需 100 µL,遠低於傳統對比劑(low injection volume)
- 高心血管耐受性:相較於傳統對比劑具更佳安全性(high cardiovascular tolerability)
- Kupffer 細胞標靶:快速被肝臟特定細胞吞噬(quickly phagocytosed by Kupffer cells)
- 肝臟腫瘤檢測:精確檢測肝腫瘤與轉移瘤(detection of liver tumors and metastases)
應用範例 Applications
在小鼠肝轉移瘤進展的 14 天追蹤研究中,單次給予 ExiTron nano 6000 後,可清晰呈現肝臟各葉組織的顯影效果,實現長期縱向追蹤(longitudinal monitoring)。
相關文獻 References
- Boll, H. et al. (2011) Micro-CT based experimental liver imaging using a nanoparticulate contrast agent longitudinal study in mice. PLoS ONE 6: e25692.
- Hua, X.W. et al. (2015) Contrast-enhanced micro-computed tomography using ExiTron nano 6000 for assessment of liver injury. World J. Gastroenterol. 21(26): 8043-8051.
ExiTron™ nano 12000
CT angiography agent - 高解析度 CT 血管造影對比劑

訂購資訊 Order Information
| 貨號 Order No. | 130-095-698 (1 x 5 injections) |
| 130-095-700 (5 x 5 injections) |
產品簡介 Product Overview
ExiTron™ nano 12000 是專為高解析度 CT 血管造影優化的奈米顆粒對比劑( high-resolution CT angiography)。作為 ExiTron nano 6000 的互補產品,ExiTron nano 12000 同時也能實現肝臟影像以及肝腫瘤與轉移瘤的檢測。這是血管影像的獨特對比劑,僅需 100 µL 即可提供卓越的血池對比效果(blood-pool contrast),在血液中半衰期為 3-4 小時。
主要特性 Key Features
- 業界領先的血管影像:最佳的 CT 血管造影對比劑
- 雙重功能:同時支援血管造影與肝臟影像(angiography and liver imaging)
- 長效血池對比:血液半衰期 3-4 小時(half-life of 3-4 h in mice)
- 低注射劑量:僅需 100 µL(low injection volume)
- 精細血管結構顯影:清晰呈現心臟與血管精細結構(vascular fine structure)
- 3D 體積成像:支援頭部顱外血管系統 3D 重建(extracranial vasculature)
應用範例 Applications
- 腫瘤血管造影:縱向追蹤腫瘤血管化(longitudinal μCT tumor angiography)
- 心臟功能評估:左心室容積估算(left ventricular volume estimation)
- 肺腺癌監測:追蹤肺腺癌進展(monitoring of lung adenocarcinoma progression)
- 4D 心臟影像:心臟呼吸雙重門控 CT(4D cardiac-respiratory gated CT)
- 高解析度血管影像:小鼠血管系統體內影像(high-resolution in vivo μCT of the mouse vasculature)
相關文獻 References
- Das, N.M. et al. (2016) In Vivo Quantitative Microcomputed Tomographic Analysis of Vasculature and Organs in a Normal and Diseased Mouse Model. PLoS One 11(2): e0150085.
- Lalwani, K. et al. (2013) Contrast Agents for Quantitative MicroCT of Lung Tumors in Mice. Comp Med. 63(6): 482-90.
- Liu, C.-N. et al. (2019) Nanoparticle contrast-enhanced micro-CT: A preclinical tool for the 3D imaging of liver and spleen in longitudinal mouse studies. J. Pharmacol. Toxicol. Methods. 96: 67-77.
ExiTron™ ultra 18000
Max contrast CT agent - 最高對比度 CT 血管造影對比劑

訂購資訊 Order Information
| 貨號 Order No. | 130-095-709 (1 x 5 injections) |
| 130-095-710 (5 x 5 injections) |
產品簡介 Product Overview
ExiTron™ ultra 18000 是一款創新奈米顆粒對比劑,能在 CT 血管造影研究中提供極致對比效果。此對比劑基於具有強大 X 射線衰減能力的後過渡金屬(post-transition metal with strong X-ray attenuation power)。其卓越的對比增強效果結合長血液半衰期,能夠實現血管結構的精細視覺化。
主要特性 Key Features
- 最高對比增強:所有 ExiTron 產品中對比度最高(highest contrast enhancement of all ExiTron products)
- 血管結構精細顯影:實現血管結構的細節視覺化(detailed visualization of vascular structures)
- 血管通透性標記:突顯血管通透性增加區域(highlights regions of increased vascular permeability)
- 長循環時間:提供長循環時間與寬廣的擷取時間窗口(long circulation time and broad acquisition time window)
- 創新材料技術:採用後過渡金屬奈米材料(post-transition metal nanoparticulate agent)
影像表現 Imaging Performance
注射前、注射後立即及注射後 5 小時的軸向與矢狀面 CT 影像顯示,ExiTron ultra 18000 具有卓越的血管對比效果。時間進程分析顯示,注射後血液與肝臟的訊號增強曲線,證實其優異的長效顯影特性。
相關文獻 References
- Amato, C. et al. (2023) Dual-contrast photon-counting micro-CT using iodine and a novel bismuth-based contrast agent. Phys. Med. Biol. 68(13).
- Amato, C. (2022) Novel Contrast Agents in Photon-Counting Computed Tomography, PhD Thesis.
ExiTron™ MyoC 8000
Myocardial CT agent - 心肌專用 CT 對比劑

訂購資訊 Order Information
| 貨號 Order No. | 130-095-701 (1 x 5 injections) |
| 130-095-702 (5 x 5 injections) |
產品簡介 Product Overview
ExiTron™ MyoC 8000 是專為心肌 CT 研究優化的創新奈米顆粒對比劑(innovative nanoparticulate agent optimized for CT studies of the myocardium)。其在健康心肌組織中的累積特性,結合高碘濃度與長血液半衰期,能夠實現心肌病理變化的視覺化以及功能性心臟影像(visualization of pathological changes of the myocardium and functional cardiac imaging)。
主要特性 Key Features
- 心肌最佳增強:優化心肌顯影並檢測其病理變化(optimally enhances the myocardium and allows detection of pathological changes)
- 快速清除:24 小時內完全清除,支援縱向研究多次注射(completely cleared within a day enabling multiple injections)
- 高生物耐受性:即使在嚴重心臟病理的虛弱動物中也具良好耐受性(high biological tolerability allowing studies in weak animals)
- 心肌梗塞檢測:有效視覺化心肌病理變化,如梗塞區域(visualize pathological changes, e.g. infarction)
- 功能性影像:支援功能性心臟影像評估(functional cardiac imaging)
影像表現 Imaging Performance
軸向、冠狀面與矢狀面 CT 影像比較顯示,健康小鼠(上排)與心肌梗塞模型小鼠(下排)使用 ExiTron MyoC 8000 後的顯著差異。時間進程分析顯示注射後血液與心肌的訊號增強曲線,確認其在心肌組織中的特異性累積。
相關文獻 References
- Sawall, S. et al. (2017) In Vivo Quantification of Myocardial Infarction in Mice using Micro-CT and a Novel Blood Pool Agent. Contrast Media Mol Imaging. https://doi.org/10.1155/2017/2617047
- Bejarano, J. et al. (2018) Nanoparticles for diagnosis and therapy of atherosclerosis and myocardial infarction: evolution toward prospective theranostic approaches. Theranostics 8(17): 4710-4732.
ExiTron™ BAT
Brown fat CT agent - 棕色脂肪組織專用 CT 對比劑

訂購資訊 Order Information
| 貨號 Order No. | 130-095-707 (1 x 5 injections) |
| 130-095-708 (5 x 5 injections) |
產品簡介 Product Overview
ExiTron™ BAT 是專為小動物棕色脂肪組織(brown adipose tissue, BAT)體內 CT 研究優化的創新對比劑(innovative agent optimized for in vivo CT studies of brown adipose tissue)。含有碘基兩親性分子(iodine-based amphiphile),能在棕色脂肪沉積處累積,輕鬆實現此組織的精確識別(accurate identification of this tissue with ease)。
主要特性 Key Features
- 棕色脂肪特異性:特異性累積於活化的棕色脂肪組織(specific accumulation in activated BAT)
- 精確組織識別:輕鬆實現棕色脂肪的精確識別(accurate identification)
- 活化狀態檢測:能區分活化與非活化的棕色脂肪組織(visualization of activated vs non-activated BAT)
- 多部位顯影:可視覺化肩胛間與頸部棕色脂肪(interscapular and cervical BAT)
- 冷暴露研究:適用於短期冷暴露後的棕色脂肪活化研究(BAT activation via cold exposure)
影像表現 Imaging Performance
注射 ExiTron BAT 後 3.5 小時的矢狀面 CT 影像顯示,肩胛間棕色脂肪(intrascapular BAT)的對比增強效果。時間進程分析比較年輕小鼠在有無短期冷暴露下的 ExiTron BAT 攝取情形,顯示對比劑在活化棕色脂肪組織中的特異性累積,使組織視覺化變得輕而易舉。
相關文獻 References
- Genger, C. et al. (2022) ExiTron BAT, a novel contrast agent visualising activated brown adipose tissue (BAT) by CT imaging. World Molecular Imaging Congress Meeting, Miami, USA.
ExiTron™ P
CT angiography agent for renal excretion - 腎臟排泄型 CT 血管造影對比劑

訂購資訊 Order Information
| 貨號 Order No. | 130-095-144 (1 x 5 injections) |
| 130-095-145 (5 x 5 injections) |
產品簡介 Product Overview
ExiTron™ P 是一款含碘 CT 血管造影對比劑,由奈米級聚合物膠囊組成(iodine-containing CT angiography agent comprised of nanometer-sized polymeric capsules)。由於其延長的循環時間,ExiTron P 能改善血管精細結構的視覺化效果。這是 Viscover 獨特的聚合物血池 CT 對比劑(unique polymeric blood-pool CT contrast agent)。
主要特性 Key Features
- 有機高分子聚合物:基於高分子量有機聚合物(based on an organic polymer of high molecular weight)
- 延長循環時間:提供延長的循環時間與更寬廣的擷取時間窗口(extended circulation time and broader acquisition time window)
- 雙重排泄途徑:經由腎臟與肝膽途徑排出體外(eliminated via renal and hepatobiliary pathway)
- 血管精細結構:改善血管精細結構的視覺化(improved visualization of vascular fine structure)
- 腎臟影像研究:適用於體內腎臟影像研究(in vivo renal imaging)
應用範例 Applications
使用 ExiTron P 進行的小鼠全身 CT 血管造影,能清晰呈現全身血管系統分布。此聚合物對比劑特別適合需要延長顯影時間的血管研究。
相關文獻 References
- Koziolek, E. et al. (2022) in vivo renal imaging in mice via contrast-enhanced CT using a novel polymeric contrast agent.
ExiTron™ U
Extracellular CT agent (Monomeric) - 細胞外 CT 對比劑(單體型)

訂購資訊 Order Information
| 貨號 Order No. | 130-095-142 (1 x 5 injections) |
| 130-095-143 (5 x 5 injections) |
產品簡介 Product Overview
ExiTron™ U 是為最大便利性而開發的參考對比劑(reference contrast agent for maximum convenience)。這是一款經典的單體非離子型細胞外 CT 血管造影對比劑(classical monomeric non-ionic extracellular contrast agent for CT angiography),基於已在人類臨床實務中長期使用的 iopromide 對比劑。ExiTron U 與人類臨床 CT 的可信標準相同,讓您能專注於實際的影像實驗。
主要特性 Key Features
- 臨床標準轉譯:基於人類臨床實務證實的 iopromide(based on proven iopromide)
- 最大便利性:省去繁瑣的稀釋與配製步驟(saving time eliminating tedious dilution steps)
- 單體非離子型:經典的細胞外對比劑類型(monomeric non-ionic extracellular agent)
- 即用型配方:已針對小動物影像調整配方(adapted for animal imaging)
- 轉譯影像研究:最適合轉譯影像應用(best suited for translational imaging)
影像表現 Imaging Performance
注射 ExiTron U 後的小鼠頸部血管 CT 血管造影,能清晰顯示頸部血管系統。此對比劑提供與人類臨床 CT 相同的可靠性與可預測性。
相關文獻 References
- Tseng, J.-C. et al. (2015) Optical Imaging on the IVIS SpectrumCT System. Perkin Elmer Technical Note.
- Dawson, P. et al. (1984) Iopromide. A new non-ionic contrast medium. Acta Radiol. Diagn. (Stockh). 25: 253-256.
ExiTron™ V
Extracellular CT agent (Dimeric) - 細胞外 CT 對比劑(雙體型)

訂購資訊 Order Information
| 貨號 Order No. | 130-095-283 (1 x 5 injections) |
| 130-095-284 (5 x 5 injections) |
產品簡介 Product Overview
ExiTron™ V 是 ExiTron U 的雙體對應產品(dimeric counterpart to ExiTron U),基於 iodixanol 並已針對動物影像調整配方(based on iodixanol and adapted for animal imaging)。ExiTron V 與人類臨床 CT 的可信標準相同,讓您能專注於實際的影像實驗,省去繁瑣的稀釋與配製步驟。
主要特性 Key Features
- 雙體非離子型:ExiTron U 的雙體版本(dimeric counterpart)
- 臨床標準基礎:基於人類臨床使用的 iodixanol(based on iodixanol)
- 動物影像優化:已針對小動物影像調整配方(adapted for animal imaging)
- 最大便利性:即用型配方,無需稀釋(eliminating tedious dilution steps)
- 轉譯研究適用:最適合轉譯影像應用(translational imaging)
影像表現 Imaging Performance
注射 ExiTron V 後的小鼠頸部血管 CT 血管造影,展現清晰的血管結構。相較於 ExiTron U,雙體結構提供不同的藥物動力學特性。
相關文獻 References
- Heglund, I.F. et al. (1995) Pre-clinical pharmacokinetics and general toxicology of iodixanol. Acta Radiol Suppl 399: 69-82.
- Larsen, L.E. et al. (1995) Neural tolerability of iodixanol in mice and dogs after single and repeated intracisternal administration. Acta Radiol Suppl 399: 238-243.
Viscover™ Customized CT Agents
客製化 CT 對比劑解決方案

客製化解決方案 Custom Solutions
Viscover 致力於滿足客戶對訂製奈米藥物與影像對比劑的需求。我們的客製化解決方案涵蓋對比劑開發(agent development)、製藥生產(pharmaceutical manufacturing)以及實驗設計(experiment design)。我們是唯一一家為所有影像模式提供標靶特異性影像對比劑的公司。
服務範圍 Service Scope
- 對比劑開發:針對特定應用需求開發新型對比劑(agent development for specific applications)
- 製藥生產:符合 GMP 標準的對比劑生產(pharmaceutical manufacturing)
- 實驗設計諮詢:影像實驗方案規劃與優化(experiment design consultation)
- 標靶特異性對比劑:為所有影像模式開發標靶對比劑(target-specific agents for all modalities)
- 合作模式:從試驗性研究到長期合作夥伴關係(from pilot studies to long-term partnerships)
技術優勢 Technical Advantages
Viscover 擁有業界領先的奈米技術平台(nanotechnology platform),結合在臨床對比劑製藥開發方面的長期產業專業知識。我們的創新產品組合採用先進的奈米技術,大多數對比劑遠超人類臨床常規水準,同時也提供臨床標準對比劑。
聯絡資訊 Contact Information
如需了解客製化對比劑服務或討論合作機會,請聯絡 Viscover 團隊獲取詳細資訊。
CT 影像範例 Data Gallery
探索 ExiTron™ 系列對比劑的豐富影像範例,包含各種應用場景的高解析度 CT 影像。
選擇 ExiTron™ 系列的理由
業界最完整產品線
從血管造影到器官特異性影像,ExiTron™ 系列涵蓋所有主要 micro CT 應用領域,提供最適合您研究需求的對比劑選擇。
創新奈米材料技術
採用先進奈米材料技術,突破傳統骨骼掃描限制,實現卓越的軟組織對比效果與長效顯影特性。
臨床前研究最佳解決方案
從基礎研究到療效監測,支援完整的臨床前影像研究流程,協助您取得高品質的研究成果。
常見問題 Frequently Asked Questions
ExiTron™ Series - Advanced Micro-CT Contrast Agents for Preclinical Research
Viscover presents the most comprehensive portfolio of micro-CT contrast agents specifically designed for preclinical small animal imaging research. The ExiTron™ series represents a breakthrough in soft tissue visualization for micro-CT, utilizing innovative nanomaterial technology to extend imaging capabilities far beyond traditional bone scans. Our contrast agents enable researchers to achieve exceptional high-resolution imaging of tumors, organs, and vascular structures with unprecedented clarity and detail.
The ExiTron™ product line encompasses specialized formulations for diverse applications including CT angiography (ExiTron nano 12000, ExiTron ultra 18000), liver-specific imaging (ExiTron nano 6000), myocardial studies (ExiTron MyoC 8000), brown adipose tissue visualization (ExiTron BAT), and translational research (ExiTron U and V). Each agent is engineered with unique pharmacokinetic properties to meet specific research requirements, from acute vascular imaging to long-term organ monitoring lasting several weeks.
Key advantages of ExiTron™ contrast agents include minimal injection volumes (typically 100 µL), extended circulation times, superior cardiovascular tolerability, and organ-specific accumulation patterns. These features make them ideal for longitudinal studies, therapeutic efficacy monitoring, tumor vascularization research, and cardiovascular pathology assessment. The agents are fully compatible with PET/CT dual-modality imaging, providing enhanced soft-tissue contrast without interfering with PET signals.
ExiTron nano 6000 stands as the leading liver imaging agent, offering long-lasting contrast for several weeks after a single injection, making it perfect for detecting liver tumors and metastases through Kupffer cell targeting. ExiTron nano 12000 provides exceptional vascular imaging with a blood half-life of 3-4 hours, enabling detailed visualization of cardiovascular structures and tumor vasculature. For maximum contrast enhancement, ExiTron ultra 18000 utilizes post-transition metal nanoparticles to deliver the highest X-ray attenuation among all products.
Specialized applications are addressed by ExiTron MyoC 8000 for myocardial infarction detection and cardiac functional imaging, and ExiTron BAT for brown adipose tissue studies, particularly useful in metabolic research and thermoregulation studies. For translational research requiring clinical standard agents, ExiTron U (monomeric, iopromide-based) and ExiTron V (dimeric, iodixanol-based) provide familiar pharmacokinetics adapted for small animal imaging, eliminating tedious dilution procedures.
Viscover's commitment to innovation extends to customized contrast agent development, pharmaceutical manufacturing, and experimental design consultation. As the only company offering target-specific imaging agents for all modalities, we support research partnerships from pilot studies to long-term collaborations. Our GMP-compliant production facility in Berlin, Germany ensures consistent quality and reliability. With extensive peer-reviewed publications validating ExiTron™ performance, researchers worldwide trust our products for groundbreaking discoveries in cancer research, cardiovascular disease, metabolic disorders, and drug development. Contact us today for application guides, technical support, and consultation on selecting the optimal contrast agent for your micro-CT research.

