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ePaper created 2014-10-07, 09:31:41 | version 1.30.01
_Two years ago, Seppo Villanen, a Finnish specialist in physical medicine and pain treatment, visited Planmeca’s stand at the Finnish Medical ConventionandsawaCBCTimageofapatientwith an obvious sequel of a fracture in the neck area. This gave him the idea of using Planmeca's 3D im- aging device for imaging patients with neck prob- lems.Theideaturnedouttobeasuccess,andnearly 30 patients have now been imaged in cooperation with Pantomo Oy, a company offering dental X-ray imaging services. Seppo Villanen has his practice at Mehiläinen medical centre in the Helsinki metropolitan area. ThepatientshehasreferredforaCBCTexamination havemostlybeenpatientssufferingfrompaininthe upper neck. “During a routine MRI scan of the neck, the upper neck is usually left outside the image, since the scan acquires transverse slices from the C3 vertebra downwards. What’s more, a regular X-ray examination of the neck is routinely per- formed in a manner that also leaves the upper neck outsidetheimage.CBCTimaging,ontheotherhand, covers the entire upper neck, from the base of the skull to the C4 vertebra, which is precisely the area that is often missing from routine studies.” Villanen’s neck patients are referred to Oral and Maxillofacial Radiology Centre Pantomo Oy for imagingwithPlanmecaProMax3D,andtheimages are interpreted by Radiologist Raija Mikkonen at Terveystalo medical centre. “We have cooperated with Raija for years”, says Villanen. In most cases, CBCT imaging is done to support MRI imaging, since the methods complement each other. In some cases, however, a CBCT scan is all that is needed: “It does not provide an insight into soft tissues, but if the image is sufficient to provide an answer to the current question, other methods are not needed.” 40 I I industry news _ Planmeca cone beam3_2014 Crisp images of the upper neck with Planmeca’s CBCT device Fig. 1_Seppo Villanen, Specialist in physical medicine and pain treatment (on the right) and Radiologist Raija Mikkonen. Fig. 2_Mika Mattila, Specialist in oral and maxillofacial radiology at Pantomo Oy, uses Planmeca ProMax 3D to scan the patients referred to him by Seppo Villanen. (Images courtesy of Juha Kienanen) Fig. 2Fig. 1 CT scan MRI Scan CBCT Scan Imaging position Lying down Lying down Sitting Speed Relatively quick Slow Quick Radiation Large dose No radiation Small dose Area of image Configurable Configurable Small (C0–C4) Functional examinations Possible Possible Possible, not yet tested Slice thickness 1 mm 2 mm 0,16 mm Artefacts Teeth, metal Metal, movement Fast scanning, teethdonotdisturb the image qualityTable I Table 1_Comparison table. CBE0314_40-42_Planmeca 30.09.14 14:18 Seite 1