#Letterbox vs pan scan movie#

Reference: Comparison of radiation exposure of trauma patients from diagnostic radiology procedures before and after the introduction of a panscan protocol. The defensive medicine naysayers will always argue about “that one catastrophic case” that will be missed, but I’m concerned that we’re creating some problems for our patients in the distant future that we are not worrying enough about right now. If we look at the likelihood of being helped vs harmed, patients are 26 times more likely to be harmed in the long term as they are to be helped in the short term. But this study is very provocative because it shows that radiation dose increases significantly when pan-scan is used, but there was no benefit in terms of decreased missed injury. All were relatively minor.īottom line: Granted, the study groups are relatively small, and the science behind radiation risk is not very exact. There were 6 missed injuries with selective scanning and 4 with pan-scanning (not significant).The risk of receiving >20 mSv was lower in less severely injured patients (sigh of relief) Last year we recommended you avoid using Netflix Instant Watching to view the David Lynch films Dune (1984) and Wild.I know of cases where relatively-small cable channels have called the studio and complained that a certain title looks like crap, and the studio has gone out and redone a brand-new transfer from scratch just to placate them. This is the threshold at which we believe that cancer risk changes from low (1:1000). It doesn't cost them a dime more to request the letterbox vs. The incidence of receiving >20 mSv radiation dose nearly doubled after pan-scanning.This translates to 1 extra person of every 13 evaluated receiving a higher dose. Absolute risk of receiving a higher radiation dose increased with pan-scanning from 12% to 20%.They prospectively looked at their experience while moving from selective scanning to pan-scanning.They studied over 600 patients in each cohort, looking at radiation exposure, missed injuries, and patient injury and discharge disposition variables.

#Letterbox vs pan scan movie#

Using 4:3 letterboxed, the DVD player compresses the image vertically so that you see the movie in widescreen, matted in the 4:3 television with black bars at the top and bottom. It all boils down to a balance between irradiating enough to be satisfied that nothing has been missed, and irradiating too much and causing harm later.Ī very enlightening study was published last year from the group at the University of New South Wales. Using 4:3 Pan and scan, the DVD player crops the edges off the sides of widescreen movies, so that they appear to fill your 4:3 television. There are two major camps working in emergency departments: scan selectively vs scan everything. Trauma professionals tend to pay little attention to radiation that they can’t see in order to diagnose things they can’t otherwise see.

But the big questions are, how much is enough and how much is too much? X-radiation is invisible but not innocuous. Diagnostic imaging is a mainstay in diagnosing injuries in major trauma patients.