Conventional radiology has been used as a receiver for a cassette system comprising a scintillator screen and a radiological film. Under the effect of the X-rays the screen emits a light radiation which insulates a film. It is then necessary to develop this film to obtain the image to be interpreted. The evolution of conventional radiology consists in digitizing the images produced by replacing this screen-film receiver with a receiver that enables this digitization.
The so-called “digital” radiography consists of different solutions:
- Cassetteless Computed Radiography Systems (CR), which uses Stimulable Photo Stimulator Scintillation Screens, also known as Memory Light Radio Scanners (ERLMs) or, improperly Phosphores Cassettes (with reference to the English term “Phosphor”). which is synonymous with scintillator) with screen readers that provide the digital image;
- Digital Radiography Systems (DR), direct or indirect, depending on whether or not a scintillator is used in the process of transforming X-radiation into an electrical signal by planar or camera sensors CCD (Charge-coupled devices)
It offers several advantages over systems using the screen-film. The data is acquired in a digital format, and the images can be directly viewed on a monitor, stored and transmitted via a computer network. In addition, the dynamic range of the photostimulable scintillator and direct scan receivers is greater than the screen-film pair. The screen-film pair can record an exposure difference of about 100: 1, while the indirect scan 10,000: 1. This large difference decreases the need for repeat examination and exposure doses of the patient. The other advantages of digital and computerized systems are the possibilities of image post-processing and the elimination of development chemistry.
X-rays: Why do we need them?
The history of chiropractic and radiographs has been more than a century of communion; they were included within the chiropractic practice just in their beginnings, both were born the same year (1895).
When a chiropractor requests an X-ray he does so with the legacy of 100 years of studies and research that this profession did in the analysis of radiographic films.
It does so with a purpose and with a specific objective: to find one of the components of the vertebral subluxation (misalignment).
The patient who visits a chiropractor for the first time can do it for 2 reasons, or because he has a problem that threatens his welfare state and therefore seeks a solution (in this group we must include, unfortunately, more than 90 % of patients and even more unfortunate, are those who visit the chiropractor as a last resort) or because they decide to review their column in search of interferences that threaten their health.
The objective of the chiropractor is to find the interference (subluxation) and eliminate it, for it has tools (visualization, static palpation, dynamic palpation, thermography and x-rays) that allow you to detect it and then needs your art to correct it through chiropractic adjustment .
A subluxated vertebra could say that it must present 3 aspects: it
must be hypomobile (with reduced mobility in relation to the neighboring vertebrae), present a misalignment and there must be an interference (to be pressing a nerve).
The radiographs allow us to visually establish and corroborate which is the misaligned vertebra, where it moved and how I should be able to adjust it. With the plates we can determine the list or listing, that is, the direction towards which the vertebra is misaligned. But it must be very clear that the subluxated vertebra is in the patient and not in the plaque and that any misaligned vertebra is not necessarily subluxed. For this reason it is necessary to first assess with all other tools the patient and lastly one should support his findings with the visual evidence offered by the radiography.
In addition, the radiographic study (spinographies) allows us to analyze other clinical aspects that, while exceeding the practice of a chiropractor, must be recognized in order to enrich the patient’s clinical history, to find areas with poor training that may modify our point of contact and in the case of finding findings that indicate the referral to another professional or an interconsultation, to be able to do it in an objective, professional and specific way.
X-rays can be used by the chiropractor to:
•View the alignment of the spine and various joints of the body
•Measure cervical, dorsal and lumbar curves
•To detect the presence of scoliosis
•Detect the presence of one leg shorter than the other
•Diagnose the presence of osteoarthritis
•Rule out the possibility of fracture or bone disease
Why the digital radiology system?
•Better image quality
•Reduction of radiation doses
•Image obtained instantly
•Fast and accurate diagnosis of your condition
•Possibility of obtaining X-rays on CD or USB key
•Access without the need for a medical prescription
•Refundable by most insurance companies
•Inexpensive compared to other medical imaging modalities