Heart Disease Community
what is diaphragmatic attenuation?
About This Community:

This patient support community is for discussions relating to angina, angioplasty, arrhythmia, bypass surgery, cardiomyopathy, coronary artery disease, defibrillator, heart attack, heart disease, mitral valve, pacemaker, PAD, stenosis, and stress tests.

Font Size:
A
A
A
Background:
Blank
Blank
Blank
Blank Blank

what is diaphragmatic attenuation?

I just recently had a stress nuclear study  and was told that I did very well in all phases.I just recieved a copy of the Doctors office notes that talks about "abnormal stress imaging study"with reference to "diaphragmatic attenuation".I am asking for information that would explain  the condition mentioned and how it relates the most favorable results I recieved.There was no mention of any other problems and was told I did not have to return for testing for 2 year.

I am 73years old,in very good health,excersing both with weight training(3xweekly) and cardio(7xweekly),171 lbs.,5'10" ,b/p 121/70 with med.and body fat at appx.20%

Thank you


This discussion is related to Radiologic Exam Report.
Related Discussions
3 Comments Post a Comment
Blank
367994_tn?1304957193
Avoidance of falsely positive results depends on distinguishing reality from artifact, in turn depending on images of highest quality. In radionuclide cardiac imaging, an inferior wall artifactual defect, so called diaphragmatic attenuation, is particularly common and vexing

The most common artifact on thallium scans in our laboratory has been posterior myocardial attenuation, mostly in males. In the past this has been thought due to the position of the diaphragm. Diaphragm is of no significance and a misnomer, but further evaluation for posterior myocardium attenuation (medically significant) to determine if there is a posterior defect and rule out an artifact. "It is suggested that a male with a flat, wide chest is more prone to posterior myocardial attenuation. If a posterior defect is present in this type of patient it is suggested he be further evaluated to rule out artifact".

For some insight mild reduced tracer "uptake" in the inferior wall is commonly seen in men with large chests. The inferior wall is furthest away from the detector, photons from the inferior wall thus travel longer distances and are attenuated (thinning, weakening, diluting), giving the appearance of reduced uptake.
"The phenomenon is often called diaphragmatic attenuation, which is a misnomer. The diaphragm is very thin and does not couse the attenuation, the diaphragmatic portion of the LV ( the inferior wall) is the affected, though".

Blank
Post a Comment
To
Top Heart Disease Answerers
976897_tn?1379171202
Blank
ed34
watford, United Kingdom
159619_tn?1318997813
Blank
erijon
Salt Lake City, UT
63984_tn?1385441539
Blank
Flycaster305
97303, OR
612551_tn?1247839157
Blank
Jerry_NJ
NJ
Avatar_f_tn
Blank
skydnsr
212161_tn?1391090750
Blank
heartfluttersflyawayplz
hoschton, GA
MedHelp Health Answers
Blank
BloodPressure Tracker
Monitor Your Blood Pressure
Start Tracking Now
Blank
HeartRhythm Tracker
Track your Heart Condition
Start Tracking Now
Recent Activity
Avatar_n_tn
Blank
kmlksl66_ commented on An Insider’s Guide to...
Jul 21
139792_tn?1299416777
Blank
Dalubaba commented on Ellen038's status
Jul 21
139792_tn?1299416777
Blank
Dalubaba commented on christineyvette's status
Jul 21
Heart Disease Community Resources
RSS Expert Activity
233488_tn?1310696703
Blank
New Cannabis Article from NORTH Mag...
Jul 20 by John C Hagan III, MD, FACS, FAAOBlank
242532_tn?1269553979
Blank
3 Reasons Why You are Still Binge E...
Jul 14 by Roger Gould, M.D.Blank
242532_tn?1269553979
Blank
Emotional Eating: What Your Closet ...
Jul 09 by Roger Gould, M.D.Blank
Top Heart Disease Answerers
976897_tn?1379171202
Blank
ed34
watford, United Kingdom
159619_tn?1318997813
Blank
erijon
Salt Lake City, UT
63984_tn?1385441539
Blank
Flycaster305
97303, OR
612551_tn?1247839157
Blank
Jerry_NJ
NJ
Avatar_f_tn
Blank
skydnsr
212161_tn?1391090750
Blank
heartfluttersflyawayplz
hoschton, GA