Bitterer, Florian and Hornung, Matthias and da Silva, Natascha Platz Batista and Schlitt, Hans J. and Stroszczynski, Christian and Wege, Anja K. and Jung, Ernst-Michael (2020) In vivo detection of breast cancer liver metastases in humanized tumour mice using tumour specific contrast agent BR55 (R). CLINICAL HEMORHEOLOGY AND MICROCIRCULATION, 76 (4). pp. 559-572. ISSN 1386-0291, 1875-8622
Full text not available from this repository. (Request a copy)Abstract
OBJECTIVE: To investigate the diagnostic accuracy of high-resolution ultrasound (HRU) for the detection of hepatic metastases of breast cancer in a humanized tumour mouse (HTM) using clinical standard technology. In addition, the efficiency of standard contrast-enhanced ultrasound (CEUS) [microbubbles of sulphur hexafluoride] and CEUS using a novel VEGFR2-targeted contrast agent [BR55 (R)] was examined. METHODS: A total of 14 HTM were sonographically examined twice. In addition to a human immune system, the animals developed hepatic tumour lesions after intrahepatic injection of BT-474 breast cancer cells. Digital cine loops from the arterial phase (15-35 sec), the portal venous phase (35-90 sec) and the late phase (3-15 min) of the entire liver were analysed. Data were correlated to histopathology. RESULTS: After 9 months, half of the mice (7/14) revealed the development of hepatic breast cancer metastases. The detection limit was 1 mm tumour diameter. In particular, the use of targeted contrast media reduced the needed tumour diameter and helped to precisely classify tumour tissue. In 93% (13/14), the findings of ultrasound could be approved by histological examination by the pathologist. CONCLUSIONS: This study in HTM demonstrated the high feasibility of tumour specific contrast media and standard HRU contrast agents to detect early liver metastases.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ENHANCED ULTRASOUND CEUS; LESIONS; US; ANGIOGENESIS; MODEL; Abdomen; contrast-enhanced ultrasound (CEUS); BR55 (R); SonoVue (R); humanized tumour mice (HTM) |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Chirurgie Medicine > Lehrstuhl für Frauenheilkunde und Geburtshilfe (Schwerpunkt Frauenheilkunde) Medicine > Lehrstuhl für Röntgendiagnostik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Apr 2021 07:22 |
| Last Modified: | 06 Apr 2021 07:22 |
| URI: | https://pred.uni-regensburg.de/id/eprint/45380 |
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