Babeh Edi

Spine Cervical Anterior Oblique

Indications for imaging Trauma, pain, rheumatoid arthritis, upper limb paraethesia, vertebral artery syndrome. Anatomy  Demonstrated Cervical vertebra bodies, intervertebral foramina, articular pillars apophysial  joints and spinous processes. The  intervertebral foramina demonstrated are those furthest from the film.   Cervical Spine Rt Anterior Oblique Anatomy Meschan, I. 1955 An Atlas of Normal Radiographic Anatomy Saunders, London Basic Patient Position The patient stands or sits facing the bucky then turns 45 degrees to bring the median saggital plane at 45 degrees to the bucky, the head is then rotated parallel to the film, the chin is raised slightly.  Cervical Spine Rt Anterior Oblique Meschan, I. 1955 An Atlas of Normal Radiographic Anatomy Saunders, London Radiation protection There are many local rules for gonad protection however the following should be taken into account. In males and females direct lead rubber gonad protection can be applied at all times, avoid the breast tissue particularly in young females, collimate to prevent irradiation of the eyes. Central Ray The central ray is angled 15 degrees caudally and  centered midway between the skin surfaces of the neck at the level of the cricothyroid cartilage. Exposure is made on suspended expiration. Exposure Factors Kv mAS FFD (cm) Grid Focus AEC Cassette 85 15 100 Yes Fine Yes 24 x 30  cm Evaluation of the Image ID and markers must be present and correct in the appropriate area of the film Evidence of collimation on four sides equally around the centering point. Optimal exposure should penetrate all the bone structures and contrast should be low enough to visualise fully the bone and soft tissue structures. Limits of the examination, anteriorly and posteriorly the skin surfaces, superiorly the base of skull inferiorly the body of T1. The intervertebral foramina should be of similar shape and size, The rami of the mandibles should be superimposed and anterior to the vertebra, The base of skull should be superior to the posterior arch of atlas. All the intervertebral joints spaces, between the bodies and the facets should be visualised.  Cervical Spine Rt Anterior Oblique Radiograph Related Projections Cervical spine AP C1-2 Cervical spine AP C3-C7 Cervical spine obliques Additional modalities CT MRI Ref: http://www.radiographicceu.com/article29.html