Digital X Ray – CR Systems – Accurate Diagnosis Using Computed Radiography
Doctor’s suggest X-rays or Radiography to study pictures of the patient’s internal organs and make a correct diagnosis. The conventional Radiologists or X-Ray technicians used ionizing radiation and image recording film to take pictures of heart, bones, breast, teeth, lungs, abdomen, etc., this is called General Radiology. Modern Radiography includes advanced devices and techniques such as computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, and nuclear medicine.
The conventional X-rays were developed using the analogue technology which was slower as the film had to be developed. Digital X-Rays on the other hand use computerised techniques that are fast and accurate. The digital X-ray picture is immediately processed and can be conveniently viewed on the monitor. The picture quality is better, and the brightness and contrast can also be altered for a clearer image. Digital radiography and x-rays have the following advantages –
- The patient is more comfortable when the digital X-ray is taken.
- Lesser radiation is required as compared to traditional X-ray methods.
- The images are larger and they can be stored on a computer for archiving, and sharing online.
- The digital X – rays can also be stored on CDs and a printed copy taken using laser X-ray printers and special paper.
A network of computers with archived and distributed digital X-rays are very useful. The radiologists and physicians can share and study these pictures over the computers and internet facilities for making better diagnosis.
Computed Radiography (CR)
The trained technicians and radiologists use imaging plate (IP), digital X-ray sensors, and photostimulable phosphor in the CR system. The chemical process required to develop the film in conventional X-ray is avoided, thus saving valuable time. There is no need for a dark room as a laser scanner is used to read the image and transfer it to the computer. The digital X-ray image can be clearly observed on the computer screen immediately after that. Brightness and contrast can also be adjusted like in a TV for better picture quality.
Digital X-Rays FAQs
Q: How safe is the patient from radiation in digital X-ray procedure?
The patient is exposed to very little radiation in order to generate a high quality X-ray. The digital X-rays can ensure 70% less radiation as compared to conventional X-rays.
Q: Can a pregnant woman be exposed to digital X-ray machines?
The patient, family, or friend should inform the X-ray technician or radiologist of the pregnancy. The patient’s abdomen is covered with lead apron or some other protective cover as a precaution. Since, digital X-rays expose the patient to very less radiation, they are much more safer.
Q: What is barium test and how long does it take?
The upper Gastrointestinal (GI) tract from throat to the small intestine is exposed to an X-ray test after the patient swallows barium sulphate. This test is performed on empty stomach and normally takes about 10 minutes to finish. It is also called as fluoroscopy by the technicians and doctors.
Q: Have X-rays become redundant with the introduction of advanced investigative tools and diagnostic techniques?
No. X-rays are still useful to correctly diagnose diseases in bones, joints, chest, and abdomen. The higher cost of installing, operating, and maintaining advanced equipment ensures that X-rays still remain useful and productive.
Preparation Instructions To Patients For Radiology Tests
|S. No.||Diagnostic Test Name||Fasting Period/Necessity||Other Instructions|
|1||X-Ray Coccyx AP/Lat||Required||Bowel Preparation (Charcoal 4 + Dulcolax 2 Previous Night)|
|2||X-Ray L S Spine AP/Lat||Required|
|4||X-Ray KUB (2 films)||Required|
|6||BARIUM ENEMA||Fasting Required||1 – 2 nights laxatives for bowel preparation. Take appointment|
|7||BARIUM ENEMA – DOUBLE CONTRAST||–||–|
|8||BARIUM MEAL UGT||Fasting Required||Take Prior Appointment.
Bring Old Medical History Records
|11||H. S. G||4 Hours Fasting|
|12||I. V. P (Nonionic Contrast Stand By Anaesthetist)||2 Hours Fasting Required|
|13||MCU + RGU|
|14||MCU or RGU|