Feasibility study on photoacoustic guidance for high-intensity focused ultrasound-induced hemostasis. 2014

Van Phuc Nguyen, and Jeehyun Kim, and Kang-Lyeol Ha, and Junghwan Oh, and Hyun Wook Kang
Pukyong National University, Interdisciplinary Program of Marine-Bio, Department of Electrical and Mechanical Engineering, 45 Yongso-ro, Nam-Gu, Busan 608-737, Republic of Korea.

The feasibility of photoacoustic imaging (PAI) application was evaluated to map punctured blood vessels thermally treated by high-intensity focused ultrasound (HIFU) for hemostasis. A single-element HIFU transducer with a central frequency of 2.0 MHz, was used to induce thermal hemostasis on the punctured arteries. The HIFU-treated lesion was imaged and localized by high-contrast PAI guidance. The results showed that complete hemostasis was achieved after treatment of the damaged blood vessels within 25 to 52 s at the acoustic intensity of 3600  W/cm 2 . The coagulation time for the animal artery was ∼20% longer than that of the phantom possibly due to a lower Young’s modulus. The reconstructed PA images were able to distinguish the treated area from the surrounding tissue in terms of augmented signal amplitudes (up to three times). Spectroscopic studies demonstrated that the optimal imaging wavelength was found to be 700 nm in order to reconstruct high-contrast photoacoustic images on HIFU-treated lesions. The proposed PAI integrated with HIFU treatment can be a feasible application to obtain safe and rapid hemostasis for acute arterial bleeding.

UI MeSH Term Description Entries
D002645 Chickens Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA. Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D005240 Feasibility Studies Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project. Feasibility Study,Studies, Feasibility,Study, Feasibility
D005263 Femoral Artery The main artery of the thigh, a continuation of the external iliac artery. Common Femoral Artery,Arteries, Common Femoral,Arteries, Femoral,Artery, Common Femoral,Artery, Femoral,Common Femoral Arteries,Femoral Arteries,Femoral Arteries, Common,Femoral Artery, Common
D006489 Hemostatic Techniques Techniques for controlling bleeding. Hemostatic Technics,Hemostatic Technic,Hemostatic Technique,Technic, Hemostatic,Technics, Hemostatic,Technique, Hemostatic,Techniques, Hemostatic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014463 Ultrasonography The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz. Echography,Echotomography,Echotomography, Computer,Sonography, Medical,Tomography, Ultrasonic,Ultrasonic Diagnosis,Ultrasonic Imaging,Ultrasonographic Imaging,Computer Echotomography,Diagnosis, Ultrasonic,Diagnostic Ultrasound,Ultrasonic Tomography,Ultrasound Imaging,Diagnoses, Ultrasonic,Diagnostic Ultrasounds,Imaging, Ultrasonic,Imaging, Ultrasonographic,Imaging, Ultrasound,Imagings, Ultrasonographic,Imagings, Ultrasound,Medical Sonography,Ultrasonic Diagnoses,Ultrasonographic Imagings,Ultrasound, Diagnostic,Ultrasounds, Diagnostic
D057086 High-Intensity Focused Ultrasound Ablation The use of focused, high-frequency sound waves to destroy tissue. It is sometimes used in conjunction with but is distinct from INTERVENTIONAL ULTRASONOGRAPHY. High Intensity Focused Ultrasound Ablation
D061088 Photoacoustic Techniques Investigative and diagnostic methods and procedures based on the photoacoustic effect, which is the generation of SOUND WAVES from the absorption of ELECTROMAGNETIC RADIATION. Optoacoustic Techniques,Optoacoustic Technologies,Photoacoustic Technologies,Optoacoustic Technique,Optoacoustic Technology,Photoacoustic Technique,Photoacoustic Technology,Technique, Optoacoustic,Technique, Photoacoustic,Techniques, Optoacoustic,Techniques, Photoacoustic,Technologies, Optoacoustic,Technologies, Photoacoustic,Technology, Optoacoustic,Technology, Photoacoustic
D019047 Phantoms, Imaging Devices or objects in various imaging techniques used to visualize or enhance visualization by simulating conditions encountered in the procedure. Phantoms are used very often in procedures employing or measuring x-irradiation or radioactive material to evaluate performance. Phantoms often have properties similar to human tissue. Water demonstrates absorbing properties similar to normal tissue, hence water-filled phantoms are used to map radiation levels. Phantoms are used also as teaching aids to simulate real conditions with x-ray or ultrasonic machines. (From Iturralde, Dictionary and Handbook of Nuclear Medicine and Clinical Imaging, 1990) Phantoms, Radiographic,Phantoms, Radiologic,Radiographic Phantoms,Radiologic Phantoms,Phantom, Radiographic,Phantom, Radiologic,Radiographic Phantom,Radiologic Phantom,Imaging Phantom,Imaging Phantoms,Phantom, Imaging

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