IYS Opening Ceremony

IYS Opening Ceremony

Kick Off International Year of Sound with U.S. Opening Ceremony at American Center for Physics on Feb. 13

Media, scientists, audio enthusiasts, students and community members are invited to attend.
FOR IMMEDIATE RELEASE

For More Information:
Keeta Jones
516-576-2364
kjones@acousticalsociety.org

COLLEGE PARK, Md., February 7, 2020 — The International Year of Sound (IYS 2020) is a global initiative to highlight the importance of sound-related sciences and technologies. The U.S. opening ceremony will be held Thursday, Feb. 13, at 6 p.m. EST at the American Center for Physics, located in College Park, Maryland.

Sponsored by the Acoustical Society of America (ASA) and its Washington, DC Regional Chapter, the ceremony will have presentations about sound-related issues as well as a public showing of a video highlighting how scientists are reducing the impact of noise pollution on the natural world.

Victor Sparrow, president of ASA, said the new video being viewed during the celebration showcases how we, as humans, have altered the world around us without even realizing it.

“Sound plays an important role in all human activities, and applications of acoustics are found in almost all aspects of modern society,” Sparrow said. “However, there is a concern about too much sound, which then becomes noise, and it needs to be controlled to ensure acceptable and safe living environments for people and nature.”

The animal sounds video is the first in a series being produced by ASA to celebrate the International Year of Sound and raise awareness into how acousticians work to improve the world through the science of sound.

The U.S. opening ceremony will also feature two presentations. Josef Rauschecker, a professor in the Department of Neuroscience at Georgetown University, give in a talk, “Auditory Perception and Action,” at the event.

“Whether we speak, sing, or play a musical instrument, sound production has to be linked to auditory perception,” Rauschecker said. “I will discuss how the brain controls these complex behaviors.”

In a separate talk, Gary Gottlieb, vice president of the Audio Engineering Society, will outline the evolution of audio — where it has been and what is on the acoustical horizon. A second video at the event, “What Makes Frozen Lakes Sing?” is a 2016 ASA Science Writing Award winner and explains the strange twang that frozen lakes create.

The evening will include refreshments and live music by String Poets. Please RSVP if attending on the ASA Facebook Page (https://www.facebook.com/events/1471661962993102/) or online at http://evite.me/GhGqB15TmD.

The Acoustical Society of America (ASA) is the premier international scientific society in acoustics devoted to the science and technology of sound. Its 7,000 members worldwide represent a broad spectrum of the study of acoustics. ASA publications include The Journal of the Acoustical Society of America (the world’s leading journal on acoustics), Acoustics Today magazine, books, and standards on acoustics. The society also holds two major scientific meetings each year. For more information about ASA, click here.

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Upcoming U.S. IYS / ASA Events in 2020

Upcoming U.S. IYS / ASA Events in 2020

13 February, 2020: US Opening Ceremony
The ASA Washington DC Regional Chapter will be hosting the US International Year of Sound Opening Ceremony on Thursday, February 13th, 6pm – 9pm in the American Center for Physics (One Physics Ellipse, College Park, MD 20740).

World Hearing Day — 3 March 2020

International Noise Awareness Day — Wednesday, 29 April 2020 

9–10 May 2020: ASA School 2020
ASA School 2020 is a two-day course for graduate students and early career acousticians being held in Itasca, Illinois. Visit https://acousticalsociety.org/asa-school-2020/ for application information.

11–15 May 2020: ASA Spring meeting
The 179th Meeting of the Acoustical Society of America will be held in Chicago, Illinois, USA.

Jam Session in Chicago
The College of Fellows will host the ASA Jam Session on Wednesday, 13 May, at 8:00 p.m. Bring your axe, horn, sticks, voice, or anything else that makes music. Musicians and non-musicians are all welcome to attend. A full PA system, backline equipment, guitars, bass, keyboard, and drum set will be provided. All attendees will enjoy live music, a cash bar, and all-around good times. Don’t miss out.

Listen Up and Get Involved!

Monday, 11 May, 1:00 p.m. to 6:00 p.m.: Technical Tour to Riverbank Laboratories
Participants are asked to make a $10 donation to the Acoustical Society of America Early Career Leadership Campaign (CAECL) when they register for the meeting. Click here for more details.

11–15 May 2020: Gallery of Acoustics
The Gallery will consist of a collection of images, videos, audio clips, and narrations of images and/or sounds generated by acoustic processes or resulting from signal and image processing of acoustic data. Visit the ASA meeting website for submission guidelines: acousticalsociety.org/asa-meetings

11–15 May 2020: Hands-on Workshop: Wiki4YearOfSound2020
During the 179th Meeting of the Acoustical Society of America. Workshop attendees will learn the basics of Wikipedia editing, make substantive changes to Wikipedia articles within their area of expertise, and find out more about the Wiki Education Foundation’s classroom program.

11–15 May 2020: Without the Past, There is no Present or Future – The Story of Historical Instruments. A display of historical instruments and photographs will be on display at the 179th ASA Spring meeting.

11–15 May 2020: Biomedical Acoustics Workshop: Time-domain ultrasound simulation in biological tissue using k-Wave
There is no fee to participate, however, participants must register online or use the printed registration form at the time of registering for 179th Meeting of the Acoustical Society of America. See full details here.

PASS 2020

9 – 13 November 2020: ASA Fall meeting
The 180th Meeting of the Acoustical Society of America will be held in Cancun, Mexico.

3aBA6 – Detecting Kidney Stones Via Doppler Ultrasound

Benjamin Wood – wood.benjamin@mayo.edu
Matthew W. Urban – urban.matthew@mayo.edu
Mayo Clinic Department of Radiology
200 First St SW
Rochester, MN 55905

Popular version of paper 3aBA6
Presented Wednesday morning, December 4th, 2019
178th ASA Meeting, San Diego, CA

Introduction
Kidney stones affect approximately 12% of the global population as of 2018. Currently, the gold standard method of kidney stone location is computed tomography (CT) as the stones are easily visible because they have a higher Hounsfield unit due to the stone’s dense structure.

Currently, there are no other comparable imaging methods for noninvasively locating kidney stones. CT is limited in its use during kidney stone treatment as it is used sparingly in the initial location of stones and in post treatment to confirm if stones are still present. If stones are found early enough and have the correct composition, they can be treated with simple lifestyle changes like increased water intake and diet restrictions. Most often when symptoms of kidney stones arise, the stones are large enough that they are treated with surgical removal or lithotripsy.

Traditional B-mode ultrasound has historically been insufficient in locating kidney stones as it can be very difficult to distinguish stones from the surrounding tissue. Detection rates for ultrasound have been reported to be much lower than CT. In 1996, an artifact was discovered when using Doppler ultrasound that appears as a sparkling mosaic over the stone that was termed the twinkling artifact (TA). In recent years kidney stones have been tested as a clinical source of TAs. The goal of this present work was to explore how stone size and composition affect TAs and the ability to locate stones with TAs in an excised kidney.

Experiments

Isolated Stone Study
Initial experiments were performed using a wide range of stone types and sizes from 1.31-55.76 mm2 in a cylindrical water tank with degassed water. Degassed water was used to reduce any introduction of microbubbles on the surface of the stones other than possibly due to ultrasound. Stones were suspended on a gauze bridge to limit TA appearance to the stones. All stones tested showed adequate TA signals regardless of stone composition or size.

Excised Kidney Study
To further test TA appearance on stones, they were individually place in an excised pig kidney and scanned in a large water tank with the same ultrasound probe as shown in Fig. 1. The power of the ultrasound pulses was tested to evaluate the ability to use the maximum power for initial location of the stones before lowering the power to a level that would precisely locate the stone and provide general information on its size. This showed no issues with the initial location of the stones with the TA.

Kidney Stones

Figure 1: Experimental setup for kidney stone scanning in an excised kidney.

Randomized Placement Study
A total of 47 stones were randomly placed within an excised kidney in a large water bath in groups of 5-8 stones per scan. This setup was used to evaluate the robustness of the method in a more clinical situation. The length of the kidney was scanned to locate as many stones as possible with some stones being placed next to each other purposefully. The process of locating and precisely pinpointing the stone is shown in Fig. 2. All 47 stones were located, including the stones placed in the same plane, with only two false positives.

Figure 2: Real-time Doppler scans of the TA over a calcium oxalate monohydrate that is 14.73 mm2 in cross-sectional area. The max voltage of 50 V was used for initial location and the minimum of 23.4 V was used for precision location.