Video and Image Help

· Dr. Kenneth Gross ·

Help>Video Help>1

Viewing videos is a processor intensive and hard drive demanding process. Large video files require higher end machines. To view videos we suggest the following minimum requirements:

Abbreviation	Resolution	Size	Download Time (DSL)	CPU	RAM	Hard Drive Speed
1X	200x150	< 50 KB	< 1 seconds	200 MHz	128 MB	10 msec
2X	400x300	100 KB	1-2 seconds	>200 MHz	256 MB	10 msec
3X	600x450	150 KB	2-3 seconds	>200 MHz	512 MB	10 msec
4X	800x600	200 KB	3-4 seconds	>500 MHz	1 GB	10 msec
5X	1000x750	400 KB	6 seconds	1GHz	2 GB	8 msec
6X	1200x800	800 KB	9 seconds	2GHz	4 GB	7 msec

5X and 6X are planned when Echo goes to HD quality.

I can't see the videos once they are downloaded.

In order to see the videos you must have the correct plugin and the correct codec installed. The videos in this web site are QuickTime videos. Go to www.apple.com and download the latest QuickTime player. The correct codec should be installed along with the QuickTime player. If not, you can download the correct codec from www.sorenson.com. The codec we use is Sorensen3. If you have installed (and reinstalled) the above files then make sure your screen resolution is at least 800x600 and your color depth is 16 bits (thousands of color) or better. Slow machines (< 500 MHz) machines may not play the larger videos correctly due to the videos large size. The large videos require a fast hard drive, lots of RAM, and a fast CPU. Try the videos on another machine to see if you need to upgrade your machine.

I can see lower resolution videos but I can't see the higher resolution videos.

Slow machines (< 500 MHz) machines may not play the larger videos correctly due to the videos large size. The large videos require a fast hard drive, lots of RAM, and a fast CPU. Try the videos on another machine to see if you need to upgrade your machine.

How are the videos named? (Video Naming Convention)

The video list uses a naming convention to allow you to search for the type of video or animation you wish to find very quickly. The naming convention uses a format developed by the ASE and SCA. The file name uses the standard ASE/SCA format so be sure to save the files in their own separate directory or you will overwrite the files of the same name. Each directory contains the abnormality-severity text.

probe location - probe view - echo mode

An underscore _ is used between each parameter. For example, if the probe located in the mid esophagus (ME) and the probe view was a 3 chamber view (3CV) and the echo mode was pulse wave doppler (PWD) the file description would be:

ME_3CV_PWD

The following table shows the naming convention abbreviations and their meaning:

Abbreviation	Meaning
Probe Location
UE	Upper Esophageal
ME	Midesophageal
TG	Transgastric
DTG	Deep Transgastric
SS	Suprasternal
PS	Parasternal
AP	Apical
SC	Subcostal
EPI	Epicardial
Probe View
4CV	4 Chamber View
MCV	Mitral Commissural View
ACV	Anterior Commissural View
PCV	Posterior Commissural View
2CV	2 Chamber View
LVLAX	Left Ventricle Long Axis
3CV	3 Chamber View
AVSAX	Aortic Valve Short Axis
RVIO	Right Ventricular Inflow-Outflow
AVLAX	Aortic Valve Long Axis
BCV	BiCaval View
LVI	Left Ventricular Inflow
PVI	Pulmonary Venous Interrogation
RVI	Right Ventricular Inflow
HVI	Hepatic Venous Interrogation
ASCSAX	Ascending Aortic Short Axis
ASCLAX	Ascending Aortic Long Axis
ARCHLAX	Arch Aorta Long Axis
ARCHSAX	Arch Aorta Short Axis
DSCLAX	Descending Aorta Long Axis
DSCSAX	Descending Aorta Short Axis
LVSAX	Left Ventricle Short Axis
IVC	Inferior Vena Cava
SVC	Superior Vena Cava
Echo Mode (Modality)
MM	M Mode
2D	2 D Echo Mode
3D	3D Echo
CFD	Color Flow Doppler Mode
PWD	Pulse Wave Doppler Mode
CWD	Continuous Wave Doppler Mode
TDE	Tissue Doppler Echocardiography
TDI	Tissue Doppler Imaging
CMM	Color M-Mode
CTD	Color Tissue Doppler
CK	Color Kinesis
Severity (SWMA)	Severity of a Segmental Wall Motion Abnormality
NK or NLK	Normal Kinesis
HK	Hypokinesis
HK1	Mild Hypokinesis
HK2	Moderate Hypokinesis
HK3	Severe Hypokinesis
AK	Akinesis
DK	Dyskinesis

Why do the videos appear darker on a LCD monitor or a portable computer?

LCD monitors on home desktop systems or portable computers have decreased contrast when compared to CRT (big, old) monitors. Because of this decreased contrast the videos will appear dark. Try decreasing the ambient lighting (view them in a dark room) and turn the contrast and brightness on your monitor to maximum.

Why are the videos on my Apple/Macintosh machine darker than a Windows machine?

Because of the method Apple/Macintosh's display images and videos, the images and videos will be darker than on a Windows machine. Try decreasing the ambient lighting (view them in a dark room) and turn the contrast and brightness on your monitor to maximum.

Why are the popup videos not popping up or not playing?

The popup videos (when you click the 1X,2X,3X,4X links) may not popup correctly if you have anti-popup windows software installed. While the anti-popup or anti-ad software works on popup ads, it also prevents our web site from popping up windows. Most of the anti-popup software will have an exception setting which allows popup windows to occur from a "trusted" web site. Please enable this setting by adding our web site www.e-echocardiography.com to the "trusted" section.

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This page was updated by Dr. Kenneth Gross and edited by Dr. Kenneth Gross on 2011-09-06 19:03:25.
This page was created on 2008-10-07 08:14:39.
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