Basic of Radiography Technique

Radiographic techniques  is the study of images procedures using xray (Roentgen rays) to create an image of Radiography (X-ray image) is great, which can be used to set up the diagnosis.The term "shoot" except in the know in Pictures, also known in Radiography. But to distinguish these two issues it needs to be seen in the following three issues:

1. In the utilization of light, ordinary mild photography using radiographs that were in use is the x - rays (Roentgen rays).
2. The key of photo periods, Photography uses your lens to get the reflected mild by the object, and after that forwarded to the video. Whereas in radiography, x - ray penetrates the object as well as captured by the movie.
3. In gear, radiographic equipment type of call for larger and more sophisticated.
   

1. Patients options:

In taking the picture, then the patient needs to be regulated to way in total or part by part, so as to aid the implementation of the shooting on the part of that require. For the setting associated with patients classified in 2 ways, namely:

a. Position the patient

What's meant by the person's position is the location of the patient as a whole in a photo blast. The position of the patients you'll find, among others:
Sleeping supine supine Equals
Sleeping face down prone =
Lateral Equals tilted sideways to the left / right (developing an angle regarding 90 °)
Oblique = Italic (an angle less than 90o)
The term is generally oblique to the location or even position of the affected individual to the film in the photo shoot. You can find four kinds of oblique position, namely:
* Right Anterior Oblique (RAO). Which means that the patient lies on the girl side with the front close to the right edge of the actual film.
- Appropriate Posterior Obique (RPO). This means that the individual lies on her side with the right edge of the trunk close to the film
* Left Anterior Oblique (LAO). This means that the patient lies on the woman's side with the front near the left edge of your film.
- Remaining Posterior Oblique (LPO). This means that patients slop with back nearby the left edge of the particular film.

b. The position of the object

The definition of the positioning or position in the object is part from the body position involving patients who needs to be regulated in a photo shoot. For example, an individual will be on hand picture, the so-called object could be the position of the arms of patients who will be in the picture. Generally, to adjust the position of your moving object has to be done so that the item is at a preferred position. Some terminology that are important amid other movements

Addukasi = movement against the body.
- Fleksio joint = folding motion.
- Ekstensio = motion to open the joint.
- Eversion = movement of open joints of the foot
- Inversion = motion to close joints of the foot
- Endorotasi = twist inward.
- Inspiration = breathing movements.
- = Movement exhale expiratory

2. Light settings

X - ray to be used in the shooting should be directed precisely on the object to be in the picture. Besides, force and number of light rays need to be managed in accordance with the size of the object to be in the picture. Therefore, the light settings can be classified into three parts, namely:
Focus film distance (FFD)

The distance between the light source (Focus) to the film, should be set at any pemotreta implement because it will affect the image quality, expose factor and so forth. In general radiography FFD for shooting range (40-180) cm, depending on the type of examination performed. Focus distance the film is divided into two parts:

a. Focus Object Distance (FOD) is the focal distance to the object
b. Object Film Distance (OFD) is the distance between the object to the film.

3. Setting Central Ray (CR)

What is meant by the Central Ray is the center of the beam used in the shooting. Central ray is a straight line the middle of the light beam that indicates the direction / running light. Further terms of the direction of light is always called in accordance with the direction of arrival and departure of the rays. Examples are as follows:

Antero-Posterior: the light from front to back

Postero-anterior: rays from back to front

Trans - Lateral: the light from one edge to another edge

- Dorso-Ventral = light from back to stomach
- Ventro-Dorsal = ray of the abdomen to the back
- Dorso-Plantar = light from the back to the palm (hands / feet)
- Dorsal = Planto-rays from the palm to the back (hands / feet)
- Inferior = Supero-rays from the top down
- Superior = Infero-rays from the ground up
- Medial = Latero-rays from the edge to the middle
- Medio-Lateral = beam from the center to the edge
- Cranial = Caudo-ray of the foot to the head
- Cranio-Caudial = light from head to foot
- Axial = rays toward the axis of joint
- Tangential = beam forming a tangent to the object.

The next photo shoot in the Central Ray will be redirected to a point on the object. Point is called the "Central Point (CP)".

4. Expose factor settings:

Expose factors (exposure factor) consists of a kV (kilo volts), mA (milli Ampere) and s (second). kV is a unit of a given potential difference between cathode and anode in the X-ray tube. KV will determine the quality of light - x to be generated. mA is a flow tube, and s is a unit of time of irradiation. MAS will determine the quantity x - ray is generated.

Exposition factor magnitude is different for each type of shooting, because of several factors that affect, among others:

a. Thickness of the object
The thicker the object in the photo, the higher the factor expose is needed in the shooting.

b. Focus Film Distance
FFD on the use of a larger, requiring a higher expose factor.

c. Shooting techniques are performed
For example, soft tissue technique, high KV technique, requires a different factor expose the usual technique even on the same object.

d. The use of certain equipment
Use of the movie screen, non screen film, grid, etc., will each require a different factor expose each other.