Відео

Failed projection of Townes skull at 5.34. There has never been a reason to include the face, cervical spine and thyroid on a Townes projection. Just reduce the angle by 4 degrees and ensure the collimation is to the brow line. Hopefully you know that changing the tube angle this way only changes the collimation. The foot xray at 11.49 shows the lower leg being needlessly included in the primary beam which doubles the dose and the scatter damage to the radiograph. Ensure you understand the geometry of projections, then use collimation as your guide rather than centring points. 75% of qualified radiographers fail my geometry test ua-cam.com/video/mZPD_gLs5Dw/v-deo.htmlsi=ucP13VwC0Sv-4JFO. Look at my channel for examples of collimation based positioning which will result in you becoming a master of the art rather than someone who completes a task to adequately specifications

Perpetuating the error than began in the 1920s. No one knows were T7 is until after the xray is taken. Obviously, if you do follow the technique, you deliver a needless primary beam dose to the thyroid and mandible. Just collimate accurately to the cassette or less, and then ensure the top of the lungs will appear on the top of the radiograph. It is likely the tutor on this video will fail my x-ray beam geometry test because anyone who is locked into centring points never has to apply geometry principles. ua-cam.com/video/mZPD_gLs5Dw/v-deo.htmlsi=ucP13VwC0Sv-4JFO

A well trained radiographer would not include the skull and shoulder joints on a chest xray. Lack of collimation increases the radiation dose enormously. The problem is in trying to find T7 and using that as a centring point. No one knows where it is, and no one judges the success of a chest xray by finding T7 in the centre. Instead, collimate to the size of the cassette, then use the illuminated field as your only positioning guide.

Stop using rules of thumb to find the centring point. Instead, collimate accurately, then use the illumination of the Light beam diaphragm as your positioning guide. For pelvis, you need the iliac crest on the top of the image. This minimisation of the primary beam is the best way to reduce radiation dose.

How do you ensure the crest is not cut off?

I think bruno in this scene is not so famous, comoared to the "other" scene.

Rip Bruno Ganz

Loved it! Thank you. 😊

If majority of people realize how kind and pro this guy is..he just took the 50 and explained it for expenses..could we get any more this kind of overall humanity these days? I think no...only self centered manners

Can this test detect worms in the stomach?

Thanks for the video ❤

Very lag video. 🤢

What if someone can't get on their stomach due to back issues?

He didn’t show where the CR ray was cause he didn’t move the camera so we could see the light on the part only a little bit was showing from where he had the camera.

jazakallah khair johnathan

Yesss you’re back!!❤

Ausome bro good content and very nice presentation and good experience kiddos for your effort and please keep posting

I just found the use of many cracked glass dr plates I have.

Is optical density=Absorbance?

Same angulation for women? 40 degrees caudad?

Great info! Thanks for sharing.

how come she didn't drink barium drink?????

how much radiation does this have exam have????

My 'no centring point' method would offset the tube to ensure accurate collimation to the detector, then back to central lock. Knowing the dimensions of the primary beam top to bottom means all I need is the iliac crests on the top of the image so I ensure that happens through palpation or with obese patients, from them indicating where their greater trochanter is. The accurate collimation will also allow exact placement of gonad protection

I would use accurate collimation and put the axial and lateral on a 18x24cm cassette. When the digital age emerged I would do the axial in a standing position to speed up the procedure and improve image quality

There is a rule. Any time radiation misses the cassette, you have used the wrong tube angle. Never use centring points. Always use collimation as your only guide.

As a retired radiographer I have performed this difficult procedure hundreds of times. My recommendation is to set the tube and the cassette in position well before you attempt to raise the opposite let. If you use a 35x43cm focused grid, you will need to angle it to ensure there is no grid cut off. If this sounds illogical, you probably fall into the trap 75% of qualifieds do where there is a fundamental misunderstanding of the geometry of a projection. ua-cam.com/video/mZPD_gLs5Dw/v-deo.htmlsi=e5HMqOBuOfOlomlu. You should be able to collimate well within the limits of the cassette and the skin edge. Not collimating well may triple the radiation dose and that may be significant for people who remain in the xray room as the scatter energy relates to the primary beam energy. I would also use an aluminium wedge filter

A woeful massive unnecessary radiation dose shown at 4.30 with what I consider to be over injection of contrast media. One good idea if you have the opportunity is to use the screening unit erect and at Focus Film Distance using the device as an erect bucky.

Bro nobody palpates the xiphoid lol

What about collimating tight and increasing the SID to get both joints, as we do for tib-fib, (even though the IR is on diagonal), would the divergence of the beam include both joints in this case? thanks.

is that danelius miller method?

Thanks 🙏🏾 What is the title for the first textbook you have used to illustrate in the video

Where can i download those charts

My favourite Liam Neeson movie.

Help a doctor.i have problem AP SUPINE AND mild lumbar

Entertaining lmao. I hope a lot of the students learned and went on to do well :)

12:38

A great video about y view x-ray. Thanks for this video.

I'm a radtech student and I like your videos very much, it is very entertaining and engaging. I wish you could do more of this so that it can help us more in the future in our clinical lab exams❤❤❤❤

that's sad to know I just discovered your channel 2 days ago and your videos have been helpful for my OSCE exam, you're the best, hope u get us updated.

great tutorial. Respectfully, I would add to make sure a few minutes pass before taking your image. This will allow any small amounts of free air to float up and be seen.

Can you explain when should turn on filament and apply KV on x ray tube. Assume filament is preheating current is always present.

Nice video. Thanks for sharing. God bless. ❤❤❤

Labs are never going to be the same without you!!

Can’t wait to see you in clinic Mr. Lee!

Thanks!

With the oblique, I set the shape of the collimation I want and the angle the sternum will be then the patient stands PA or lies down. I use the central line on the Bucky and the sternal notch to determine where the top of the sternum will be on the tightly collimated radiograph. Always a breathing technique. For the lateral, I will also set my collimation first and my only positioning reference point is the sternal notch. I rotate the collimator to run it parallel to the sternum 2 inches wide. Lean the patient forward or backwards. On more solid builds with muscle and fat, ensure you give enough exposure. Curious about the lateral shown in the video. If it was a true lateral, the humeral head would not be in the image. The fact the other one is not in the image means it wasn't a true lateral. So my technique would reduce the radiation dose to 1/6th in both images.

No last moment collimation to well within the skin edge? That will improve the quality of the image a lot. I use a wedge filter often to even out the exposure. A big grid can be used but not vertically, the angle required to satisfy the focus and geometry. Grid work is often done badly because a mistake has been passed down through the generations to do with angulation and geometry. If you learn it, you can master radiography. If you don't you will be trapped in monotony without the opportunity to produce perfection. ua-cam.com/video/mZPD_gLs5Dw/v-deo.html

This video is the most educational one for me in my field 😮😮❤

Thank you.