7 research outputs found
Tourist Information Center Toraja Utara
Kabupaten Toraja Utara memiliki potensi pariwisata yang sangat besar, dari potensi warisan budaya dan adat istiadat sampai kekayaan dan keindahan alamnya. Hal ini mampu menarik minat wisatawan, baik wisatawan domestik maupun mancanegara. Tercatat sejak tahun 2008 terjadi peningkatan jumlah wisatawan yang cukup tinggi. Maka keberadaan Tourist Information Center sangat penting dalam melayani kebutuhan para wisatawan ini.
Tourist Information Center Toraja Utara sebagai sarana melayani dan memberikan pengetahuan (edukasi) tentang potensi warisan pariwisata Toraja Utara, dimana para wisatawan mampu merasakan pengalaman dan kesan yang tidak mampu diberikan oleh media informasi lainnya seperti internet ataupun sejenis buku panduan pariwisata. Selain itu, Tourist Information Center memiliki fungsi sebagai fasilitas terpadu (multifungsi), yang secara tidak langsung mampu meningkatkan kualitas ekonomi masyarakat melalui program promosi pariwisata Kabupaten Toraja Utar
Schematic overview of the position of phantom and ultrasound probe during ultrasound image acquisition.
<p>Schematic overview of the position of phantom and ultrasound probe during ultrasound image acquisition. Left. Position to obtain long axis images. The long axis of the probe (LA probe) is parallel to the long axis of the calcium (LA calcium). The phantom moves in direction along the short axis of the probe (SA probe). A = agar phantom with 5 increasing amounts of calcium, B = ultrasound probe mounted on support stand. Right. Position to obtain short axis images. The long axis of the probe (LA probe) is perpendicular to the long axis of the calcium (LA calcium). The phantom moves in direction along the short axis of the probe (SA probe). A = agar phantom with 5 increasing amounts of calcium, B = ultrasound probe mounted on support stand.</p
The correlation between the US calcium volume and CT calcium volume.
<p>The correlation between the calcium volume measured with CT and ultrasound, for different amounts of calcium (2-50mg). There is a significant correlation between the two techniques with R<sup>2</sup> = 0.7392, p<0.0001.</p
The correlation between cIB calcium score and US calcium score.
<p>The correlation between calcium scores measured with cIB (cIB calcium score) and ultrasound (US calcium score) for different amounts of calcium (2-50mg). There is a significant correlation between the two techniques with R<sup>2</sup> = 0.9439, p <0.0001.</p
Correlation of calcium amount with US calcium volume and CT calcium volume.
<p>(A) The correlation between the calcium amount and the US calcium volume. There is a significant correlation between the amount of calcium (2-50mg) and the US calcium volume, with R<sup>2</sup> = 0.8161, p<0.0001. (B) The correlation between the calcium amount and the CT calcium. There is a significant correlation between the amount of calcium (2-50mg) and the CT calcium volume, with R<sup>2</sup> = 0.9788, p<0.0001.</p
Effect of Dye and Conjugation Chemistry on the Biodistribution Profile of Near-Infrared-Labeled Nanobodies as Tracers for Image-Guided Surgery
Advances
in optical imaging technologies have stimulated the development of
near-infrared (NIR) fluorescently labeled targeted probes for use
in image-guided surgery. As nanobodies have already proven to be excellent
candidates for molecular imaging, we aimed in this project to design
NIR-conjugated nanobodies targeting the tumor biomarker HER2 for future
applications in this field and to evaluate the effect of dye and dye
conjugation chemistry on their pharmacokinetics during development.
IRDye800CW or IRdye680RD were conjugated either randomly (via lysines)
or site-specifically (via C-terminal cysteine) to the anti-HER2 nanobody
2Rs15d. After verification of purity and functionality, the biodistribution
and tumor targeting of the NIR-nanobodies were assessed in HER2-positive
and -negative xenografted mice. Site-specifically IRDye800CW- and
IRdye680RD-labeled 2Rs15d as well as randomly labeled 2Rs15d-IRDye680RD
showed rapid tumor accumulation and low nonspecific uptake, resulting
in high tumor-to-muscle ratios at early time points (respectively
6.6 ± 1.0, 3.4 ± 1.6, and 3.5 ± 0.9 for HER2-postive
tumors at 3 h p.i., while <1.0 for HER2-negative tumors at 3 h
p.i., <i>p</i> < 0.05). Contrarily, using the randomly
labeled 2Rs15d-IRDye800CW, HER2-positive and -negative tumors could
only be distinguished after 24 h due to high nonspecific signals.
Moreover, both randomly labeled 2Rs15d nanobodies were not only cleared
via the kidneys but also partially via the hepatobiliary route. In
conclusion, near-infrared fluorescent labeling of nanobodies allows
rapid, specific, and high contrast <i>in vivo</i> tumor
imaging. Nevertheless, the fluorescent dye as well as the chosen conjugation
strategy can affect the nanobodies’ properties and consequently
have a major impact on their pharmacokinetics
Radiolabeled Mannosylated Dextran Derivatives Bearing an NIR-Fluorophore for Sentinel Lymph Node Imaging
Current
methods for sentinel lymph node (SLN) mapping involve the
use of radioactivity detection with technetium-99m sulfur colloid
and/or visually guided identification using a blue dye. To overcome
the kinetic variations of two individual imaging agents through the
lymphatic system, we report herein on two multifunctional macromolecules, <b>5a</b> and <b>6a</b>, that contain a radionuclide (<sup>99m</sup>Tc or <sup>68</sup>Ga) and a near-infrared (NIR) reporter
for pre- and/or intraoperative SLN mapping by nuclear and NIR optical
imaging techniques. Both bimodal probes are dextran-based polymers
(10 kDa) functionalized with pyrazole-diamine (Pz) or 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic
acid (DOTA) chelating units for labeling with <i>fac</i>-[<sup>99m</sup>Tc(CO)<sub>3</sub>]<sup>+</sup> or <sup>68</sup>Ga(III),
respectively, mannose units for receptor targeting, and NIR fluorophore
units for optical imaging. The probes allowed a clear visualization
of the popliteal node by single-photon emission computed tomography
(SPECT/CT) or positron emission tomography (PET/CT), as well as real-time
optically guided excision. Biodistribution studies confirmed that
both macromolecules present a significant accumulation in the popliteal
node (<b>5a</b>: 3.87 ± 0.63% IA/organ; <b>6a</b>: 1.04 ± 0.26% IA/organ), with minimal spread to other organs.
The multifunctional nanoplatforms display a popliteal extraction efficiency
>90%, highlighting their potential to be further explored as dual
imaging agents