Innovative Approach For Including Dual Mode Ultrasound And Volumetric Imaging Capability Within A Medical Photoacoustic Imaging Camera System

2018 ◽  
Author(s):  
Navalgund Rao ◽  
Francis Kalloor ◽  
Bhargava Chinni ◽  
Zichao Han ◽  
Vikram Dogra
Keyword(s):  
Photoacoustic Imaging ◽  
Innovative Approach ◽  
Dual Mode ◽  
Camera System ◽  
Volumetric Imaging ◽  
Imaging Capability ◽  
Imaging Camera

scholarly journals Retrieval of sulphur dioxide from a ground-based thermal infrared imaging camera

2014 ◽  
Vol 7 (2) ◽  
pp. 1153-1211 ◽  
Author(s):  
A. J. Prata ◽  
C. Bernardo
Keyword(s):  
Column Density ◽  
Infrared Imaging ◽  
Major Constituent ◽  
Full Description ◽  
Thermal Imager ◽  
So2 Emissions ◽  
Camera System ◽  
Thermal Infrared Imaging ◽  
Imaging Camera ◽  
Spectral Channels

Abstract. Recent advances in uncooled detector technology now offer the possibility of using relatively inexpensive thermal (7 to 14 μm) imaging devices as tools for studying and quantifying the behaviour of hazardous gases and particulates in atmospheric plumes. An experimental fast-sampling (60 Hz) ground-based uncooled thermal imager (Cyclops), operating with four spectral channels at central wavelengths of 8.6, 10, 11, and 12 μm and one broadband channel (7–14 μm), has been tested at several volcanoes and at two industrial sites, where SO2 was a major constituent of the plumes. This paper presents new algorithms, which include atmospheric corrections to the data and better calibrations to show that SO2 slant column density can be reliably detected and quantified. Our results indicate that it is relatively easy to identify and discriminate SO2 in plumes, but more challenging to quantify the column densities. A full description of the retrieval algorithms, illustrative results and a detailed error analysis are provided. The Noise-Equivalent Temperature Difference (NEΔT) of the spectral channels, a fundamental measure of the quality of the measurements, lies between 0.4–0.8 K, resulting in slant column density errors of 20%. Frame averaging and improved NEΔT's can reduce this error to less than 10%, making a stand-off, day or night operation of an instrument of this type very practical for both monitoring industrial SO2 emissions and for SO2 column densities and emission measurements at active volcanoes. The imaging camera system may also be used to study thermal radiation from meteorological clouds and from the atmosphere.

Facile synthesis of polypyrrole@metal–organic framework core–shell nanocomposites for dual-mode imaging and synergistic chemo-photothermal therapy of cancer cells

2017 ◽  
Vol 5 (9) ◽  
pp. 1772-1778 ◽  
Author(s):  
Xiangjun Chen ◽  
Manjie Zhang ◽  
Shengnan Li ◽  
Lu Li ◽  
Lingyu Zhang ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Cancer Cells ◽  
Photothermal Therapy ◽  
Photoacoustic Imaging ◽  
Metal Organic Framework ◽  
Core Shell ◽  
Dual Mode ◽  
Facile Synthesis ◽  
Metal Organic ◽  
Facile Route

A facile route was developed to fabricate PPy@MOF for dual-mode magnetic resonance/photoacoustic imaging and synergistic chemo-photothermal therapy.

Evaluation of peripheral artery disease with the TIVITA® Tissue hyperspectral imaging camera system

2019 ◽  
Vol 73 (1) ◽  
pp. 3-17 ◽  
Author(s):  
Eberhard Grambow ◽  
Michael Dau ◽  
Niels Arne Sandkühler ◽  
Matthias Leuchter ◽  
Amadeus Holmer ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Peripheral Artery Disease ◽  
Peripheral Artery ◽  
Camera System ◽  
Imaging Camera ◽  
Artery Disease

scholarly journals Teknik Interpolasi Bikubik untuk Memperbesar Gambar Hasil Pemetaan Suhu dari Sensor MLX90640 pada Praktikum Mikrokontroller

2021 ◽  
Vol 3 (1) ◽  
pp. 36-46
Author(s):  
Mochammad Darwis
Keyword(s):  
Temperature Sensor ◽  
Electrical Equipment ◽  
Current Sensor ◽  
Camera System ◽  
Temperature Imaging ◽  
Infrared Rays ◽  
Imaging Camera ◽  
Significant Temperature ◽  
Temperature Measurement System ◽  
Bicubic Interpolation

The occurrence of various disruptions and damage to equipment and electrical installations begins with a significant temperature increase in it. The temperature increasing in electrical equipment and installations will also increase the consumption of energy or power required. Previous technology used a temperature sensor and current sensor which had to be installed in the environment to be monitored. The temperature measurement system without touching the surface which is measured using infrared rays is a new breakthrough that really helps maintenance and repair. Also with the existence of a temperature sensor arranged in an array, it can map the existing temperature so that it can provide a better picture for analyzing the symptoms that  occur, compared  to using a temperature sensor that measures one point only. A temperature imaging camera is currently very expensive, making procurement a bit difficult for laboratories dealing with electrical equipment and installations. In this research, we will try to make an inexpensive temperature imaging camera using the MLX90640 sensor and the ESP32 microcontroller. Bicubic interpolation is used to  enlarge the resulting image obtained  by the MLX90640 sensor. The MATLAB program is   used to simulate and create an overall temperature imaging camera system. Tested and compared with two other interpolation methods to ensure that bicubic interpolation can produce better magnified images.

Fabrication of a novel C-scan photoacoustic imaging camera

2015 ◽  
Author(s):  
Bhargava Chinni ◽  
Vikram Dogra ◽  
Zichao Han ◽  
Navalgund Rao ◽  
Pedro Vallejo ◽  
...  
Keyword(s):  
Photoacoustic Imaging ◽  
Imaging Camera

scholarly journals Preparation of Near-Infrared/Photoacoustic Dual-Mode Imaging and Photothermal/Chemo Synergistic Theranostic Nanoparticles and Their Imaging and Treating of Hepatic Carcinoma

2021 ◽  
Vol 11 ◽  
Author(s):  
Yun Zhou ◽  
Bixia Lin ◽  
Kai Li ◽  
Yufeng Zhao ◽  
Zhuo Sun ◽  
...  
Keyword(s):  
Colloidal Stability ◽  
Near Infrared ◽  
Photoacoustic Imaging ◽  
Low Cost ◽  
Functional Materials ◽  
Hepatic Carcinoma ◽  
Dual Mode ◽  
Photothermal Conversion ◽  
Theranostic Nanoparticles

At present, the clinical diagnosis of and treatment methods for hepatic carcinoma still fail to fully meet the needs of patients. The integrated theranostic system, in which functional materials are used to load different active molecules, created a new developmental direction for the combination treatment of hepatic carcinoma, realizing the synchronization of diagnosis and treatment. In this study, polydopamine (PDA), which has the functions of self-assembly, encapsulation, photothermal conversion, and photoacoustic interaction, was used as the carrier material. The IR780, a near-infrared fluorescence imaging (NIFI), photoacoustic imaging (PAI), and photothermal therapy (PTT) agent, and paclitaxel (PTX), a broad-spectrum chemotherapy drug, were selected to build the NIF/PA dual-mode imaging and PTT/chemo synergistic theranostic nanoparticles (DIST NPs). The DIST NPs have a 103.4 ± 13.3 nm particle size, a weak negative charge on the surface, good colloidal stability, slow and controlled drug release, and high photothermal conversion ability. The experiments results showed that the DIST NPs have a long circulation in vivo, high bioavailability, high biocompatibility, and low effective dose. DIST NPs showed an excellent NIFI/PAI dual-mode imaging and significant synergistic antitumor effect in hepatic carcinoma models. DIST NPs met the initial design requirements. A set of fast and low-cost preparation methods was established. This study provides an experimental basis for the development of new clinical theranostic methods for hepatic carcinoma.

scholarly journals Development of the Pressure-Field Imaging Camera System

1998 ◽  
Vol 18 (Supplement1) ◽  
pp. 205-208
Author(s):  
Hiroshi KANDA ◽  
Yoshimi IIJIMA ◽  
Keisuke ASAI
Keyword(s):  
Pressure Field ◽  
Camera System ◽  
Imaging Camera ◽  
Field Imaging

Comparison of vascular imaging capability between photoacoustic imaging and ultrasound microangiography

2021 ◽  
Author(s):  
Handi Deng ◽  
Tengfei Yu ◽  
Hanqing Duan ◽  
Jianpan Gao ◽  
Yizhou Bai ◽  
...  
Keyword(s):  
Photoacoustic Imaging ◽  
Vascular Imaging ◽  
Imaging Capability
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