PHY WEB: Beam Focussing and Beamformers

PHY WEB: Beam Focussing and Beamformers
This webinar includes a description of the various methods used to focus an ultrasound beam including the use of an acoustic lens and how electronic focusing operates. The method of operation of multiple focal zones and the use of variable aperture on transmit will also be discussed. Available until Mid-Jan 2021


Welcome to ASUM’s Physical Principles of Ultrasound Webinar Series ideal for all medical trainees and practitioners who use ultrasound. 

Whether you qualified recently, some time ago or or still in the learning phase, you are sure to learn from our specialist presenters, whether physicist or practitioners. They will make the Physical Principles of Ultrasound so much simpler to understand and possibly even fun! 

Join Brian Starkoff, Martin Necas, Dr Rob Gill and Adam Lunghi over 11 fortnightly webinars as they delve into the principles and fundamentals of Ultrasound Physics. 

View the full program here. 
 
This is the 2nd webinar in the series!

This webinar, presented by Brian Starkoff, will include a description of the various methods used to focus an ultrasound beam including the use of an acoustic lens and how electronic focussing operates.

The method of operation of multiple focal zones and the use of variable aperture on transmit will also be discussed. The principle of operation of receive focussing will also be reviewed. The webinar will also include an introduction to multiple beamformers.
 
Key learnings and outcomes:

Gain an understanding of:
-    How the design and operation of a transducer are used to focus a beam.
-    The use of the beamwidth formula to calculate the width of an ultrasound beam at the focal point.
-    How electronic focussing operates in an array transducer.
-    The use of multiple focal zones and associated compromises with ultrasound imaging.
-    The principle of operation of dynamic receive focusing.
-    How variable aperture on transmit and dynamic aperture on receive operates
-    The function of a beamformer and the use of multiple beamformers in an ultrasound system.

This course does not meet the requirements for any RPL for the DMU, CCPU, CAHPU or DDU. 

It covers the theoretical curriculum for Physics. Ultrasonic imaging provides impressively detailed images of gross anatomy and pathology. The high quality of these images can lead to overconfidence in interpretation of the images in a clinical setting. In practice, all ultrasound images are distorted to some extent and are subject to artifact. While not always materially detracting from the image, it is essential to recognise the presence of artifacts and minimise their effects in order to draw appropriate clinical conclusions from ultrasound images. This is of particular significance in studies involving accurate measurement (for example, estimating tumour growth) and where accurate localisation of a structure is required. As most artifacts must be dealt with by the user at the time of the ultrasound examination, the importance of understanding the imaging process and its limitations has led to the inclusion of a compulsory ‘physics’ component in all qualifications issued by ASUM. 


 

This webinar's recording will be available for 6 weeks after it airs live i.e. until 17 January 2021

CPD:

Biography:
Click here to download presenter biography

FAQ below


Timing & Duration: approx. 60-mins
Start time: 19.00 AEDT
Finish time: 20.00 AEDT

Cost of Registration:
ASUM members $15
Non-ASUM members $30


Please note:
In order to receive your CPD Certificate you will need to:
1. View the webinar for at least 30 minutes
2. Use the same email address that you registered with to view the webinar


WEBINAR FAQ:
Q1: What if I miss watching the webinar live?
A: If you registered before the live webinar we will send you a link the next day to watch the recording, whether or not you viewed it live.
If you registered after the live webinar started: you'll receive an email and on completing Step 2 the webinar recording will be launched automatically. 

Q2: Can I still register and watch the recording after the webinar has run ?
A: Yes, you'll receive an email and on completing Step 2 the webinar recording will be launched automatically. 

Q3: I watched the webinar recorded session, but I have not received a confirmation of my registration or of my attendance certificate.
A: Please check your spam/junk folder as it may get caught there. See Q4 for CPD certificates.

Q4: Do I get / When will I get my CPD Certificate of Attendance?
A: Everyone who watches at least 30-mins of the webinar will be emailed a Certificate of Attendance: 
      a) If you watch the webinar live, your CPD certificate will be sent within 1-2 days
           If you watch it on-demand you will receive your CPD certificate 30+ days after the live webinar aired. 
      b) For COVID-19 related webinars on-demand: you'll receive a certificate within the first couple of business days the following month in which you watched it


Cancellations and Refunds:

Cancellations are non-refundable.

If you do not receive a confirmation of receipt within 7 business days of registering, please check you spam folder as both the email and receipt are automatically generated. If you still cannot find it then please contact the ASUM office on +61 2 9438 2078

When
1/12/2020 7:00 PM - 8:00 PM
Where
Online WEBINAR, NSW Online AUSTRALIA
Online registration not available.

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