Ultrasound molecular imaging by targeted microbubble contrast agents

M. Mancini, A. Greco, A. Speranza, M. Salvatore

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Ultrasound contrast agents are based on the physical resonating behavior of bubbles with a diameter of few microns, i.e. microbubbles, when they undergo ultrasound beams. Microbubbles, once introduced in the body intravenously, increase the blood backscatter improving contrast in images, so that both the macroand microcirculation can be visualized in order to asses organ function and to characterize tumors vascularity. Recently, the analysis of phenomena associated with resonating microbubbles such as "cavitation", "microstreaming" and "sonoporatlon", has suggested that ultrasound contrast agents may be induced, intentionally by the ultrasonographer, to interact with the endothelial cells and that the interaction may further be driven if microbubbles are specifically targeted for intravascular molecules: either by modifying the shell of microbubbles or by attaching on the shell specific ligands, i.e. peptides, proteins and antibody. These features have opened new scenarios, since microbubbles can be seen, not only, as media to improve generically contrast vascular image, but also to record physiological process undergoing into the vascular constrain as well as to release a healing payload, carried by microbubbles, to the surrounding tissues. Therefore, ultrasound contrast media may further place ultrasonography (US) among the therapeutic modalities as much as advances in ligands and bubbles biochemistry as soon as advances in US probes technology will be provided. A concise overview of the current understandings on ultrasound contrast media is hereafter presented.

Original languageEnglish
Pages (from-to)97-110
Number of pages14
JournalMinerva Biotecnologica
Volume21
Issue number2
Publication statusPublished - 2009

Fingerprint

Molecular imaging
Microbubbles
Molecular Imaging
Contrast Media
Ultrasonography
Ultrasonics
Contrast media
Ligands
Microcirculation
Blood Vessels
Biochemistry
Endothelial cells
Physiological Phenomena
Cavitation
Antibodies
Peptides
Tumors
Equidae
Blood
Tissue

Keywords

  • Diffusion magnetic resonance imaging
  • Microbubbles
  • Ultrasonography

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology
  • Bioengineering

Cite this

Ultrasound molecular imaging by targeted microbubble contrast agents. / Mancini, M.; Greco, A.; Speranza, A.; Salvatore, M.

In: Minerva Biotecnologica, Vol. 21, No. 2, 2009, p. 97-110.

Research output: Contribution to journalArticle

Mancini, M, Greco, A, Speranza, A & Salvatore, M 2009, 'Ultrasound molecular imaging by targeted microbubble contrast agents', Minerva Biotecnologica, vol. 21, no. 2, pp. 97-110.
Mancini, M. ; Greco, A. ; Speranza, A. ; Salvatore, M. / Ultrasound molecular imaging by targeted microbubble contrast agents. In: Minerva Biotecnologica. 2009 ; Vol. 21, No. 2. pp. 97-110.
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