The great error in radiography began in the 1920s when it became necessary to know where the xray beam pointed. Cones were used as well as pointing sticks. In the 1960s, the collimator was developed which could limit the beam to a rectangular size. In the 70s a mirror and globe meant the area to be irradiated could be visualised but poorly due to the limitations of projector bulbs. By the 80s, the high beam diaphragm was used successfully with every machine but the positioning techniques still dated to the 1920s. The techniques used today have not been revised which means massive extra unnecessary radiation doses because radiographers still follow the century old tradition. My beginnings in radiography were disastrous as I could not remember the 140 different instructional systems that related to all the required projections. At the end of my 2nd year as a student, I developed my own system which depended on a knowledge of anatomy, the requirements of the projection and accurate collimation. No radiation missed the cassette. Each projection became a prediction of my knowledge and every radiograph was the result of my prediction. This differed from the mainstream in that there was no real relationship between the centring point and the radiograph. Collimation was guessed by the mainstream. In 1988 I presented a paper at the National conference in Australia about the errors that were in the manuals and practices of radiographers, and in 2016 I presented another paper about how very few radiographers knew about the geometry of a projection. They believed a century old error. They didn't know that changing the tube angle didn't change the projection. th-cam.com/video/QRT7wpOZmko/w-d-xo.htmlsi=WjIUMbJJomTeNmvU Since retirement I have spent a thousand hours reviewing and commenting on the horrible standards of radiography youtubes from around the world. These range from the worst possible practices such as whole body dose for a baby instead of a chest xray th-cam.com/video/QRT7wpOZmko/w-d-xo.htmlsi=WjIUMbJJomTeNmvU to unsafe xray equipment th-cam.com/video/y6QjJKWA9B0/w-d-xo.htmlsi=0xKhkZFlnWIT-KBv to dangerously incomplete xray series th-cam.com/users/shortsl7_76VMtcOc?si=02XSNVsUlGjR03vK to massive unnecessary radiation doses th-cam.com/users/shortsl7_76VMtcOc?si=02XSNVsUlGjR03vK I have informed the profession about this as well as radiology organisations and orthopedic organisations, but because there are no well trained radiographers, they are unaware of what good radiographic practice is in regards accurate positioning and minimal radiation dose. Look at my site for perfect radiography of the spine. th-cam.com/users/shortsI7XcvvZd0e0?si=NjUFlHxrsXnIyyNP No university seems to be teaching my system though there was some interest a decade ago. The reason I presented the paper in 2016 was because all three university tutors failed the geometry tests. 75% of all radiographers fail the tests.
Nice one 👏👏
Thank you very much 😊
Awesome Michael....well-done you are doing amazing
Thank you very much sir. This means a lot.
Thank you! I will share this video to my collegues!
Very amazing
Thanks😊 Happy World Radiography Day
Really Wonderful ✨😍 explanation with Short story and album.
Well done to you and thanks for this
Thank you very much sir
Hi Michael, my name is Omnia I follow you from Iraq, your explanation is simple and beautiful, thank you. 🌺
Hi Omnia, nice to meet you😊. Thanks for the review😀
Wow! This is awesome Michael!
Thanks😊
This was beautiful!
Happy radiology day sr....😊
Happy Radiology Day to you too Kirti😀
Thanks!
Thank you
The great error in radiography began in the 1920s when it became necessary to know where the xray beam pointed. Cones were used as well as pointing sticks. In the 1960s, the collimator was developed which could limit the beam to a rectangular size. In the 70s a mirror and globe meant the area to be irradiated could be visualised but poorly due to the limitations of projector bulbs. By the 80s, the high beam diaphragm was used successfully with every machine but the positioning techniques still dated to the 1920s. The techniques used today have not been revised which means massive extra unnecessary radiation doses because radiographers still follow the century old tradition.
My beginnings in radiography were disastrous as I could not remember the 140 different instructional systems that related to all the required projections. At the end of my 2nd year as a student, I developed my own system which depended on a knowledge of anatomy, the requirements of the projection and accurate collimation. No radiation missed the cassette. Each projection became a prediction of my knowledge and every radiograph was the result of my prediction. This differed from the mainstream in that there was no real relationship between the centring point and the radiograph. Collimation was guessed by the mainstream.
In 1988 I presented a paper at the National conference in Australia about the errors that were in the manuals and practices of radiographers, and in 2016 I presented another paper about how very few radiographers knew about the geometry of a projection. They believed a century old error. They didn't know that changing the tube angle didn't change the projection. th-cam.com/video/QRT7wpOZmko/w-d-xo.htmlsi=WjIUMbJJomTeNmvU
Since retirement I have spent a thousand hours reviewing and commenting on the horrible standards of radiography youtubes from around the world. These range from the worst possible practices such as whole body dose for a baby instead of a chest xray th-cam.com/video/QRT7wpOZmko/w-d-xo.htmlsi=WjIUMbJJomTeNmvU to unsafe xray equipment th-cam.com/video/y6QjJKWA9B0/w-d-xo.htmlsi=0xKhkZFlnWIT-KBv to dangerously incomplete xray series th-cam.com/users/shortsl7_76VMtcOc?si=02XSNVsUlGjR03vK to massive unnecessary radiation doses th-cam.com/users/shortsl7_76VMtcOc?si=02XSNVsUlGjR03vK
I have informed the profession about this as well as radiology organisations and orthopedic organisations, but because there are no well trained radiographers, they are unaware of what good radiographic practice is in regards accurate positioning and minimal radiation dose. Look at my site for perfect radiography of the spine. th-cam.com/users/shortsI7XcvvZd0e0?si=NjUFlHxrsXnIyyNP No university seems to be teaching my system though there was some interest a decade ago. The reason I presented the paper in 2016 was because all three university tutors failed the geometry tests. 75% of all radiographers fail the tests.