- #PROTRACTOR MEASUREMENTS MANUAL#
- #PROTRACTOR MEASUREMENTS PORTABLE#
- #PROTRACTOR MEASUREMENTS SOFTWARE#
- #PROTRACTOR MEASUREMENTS FREE#
The general region (e.g., thoracic or lumbar) of the major scoliotic curve to be measured was nominated on each radiograph at the time of issuing measurement instructions, to ensure that all observers measured the same curve. Each radiograph was de-identified of all patient information and multiple copies of the 20 radiographs were printed onto A3 sized paper. A single digital pre-operative full-length postero-anterior radiograph for each patient was retrieved. The patient group represented a range of AIS curve classifications and severities. Twenty adolescent idiopathic scoliosis (AIS) patients were randomly selected from the Paediatric Spine Research Group’ spinal deformity patient database at the Mater Children’s Hospital, Brisbane, Australia. The aim of this study was to quantify the measurement performance of the Apple iPhone compared with a standard protractor for the assessment of coronal Cobb angles on hardcopy radiographs.
#PROTRACTOR MEASUREMENTS SOFTWARE#
The availability of various software applications for smartphones which read and display the accelerometer signal allow them to be used in a wide range of potential clinical applications, such as a goniometer for measuring peripheral joint ranges of motion, a scoliometer (Scoliosis Research Society, Milwaukee, WI) for rib hump assessment in scoliosis clinics, or as investigated in this study, for the measurement of Cobb angles on plain radiographs.
The recent generation of mobile ‘smartphones’ often incorporate a micro-electro-mechanical-system (MEMS) accelerometer, which can accurately sense acceleration and inclination.
For these reasons, scoliosis curve measurements using hard copy radiograph films or printed versions of digital radiographs are still widely performed.
#PROTRACTOR MEASUREMENTS PORTABLE#
However, access to this technology is not universal, and software-based digital radiograph measurement tools are generally not portable or useful when the clinician is consulting with patients outside of the hospital or computer networked medical facility.
#PROTRACTOR MEASUREMENTS MANUAL#
Increased adoption of picture archiving and communication (PACS) systems within hospitals has reduced the need for manual measurement of scoliosis Cobb angles in some cases, as spinal curves can be measured directly on digital radiographs using software tools built into the imaging viewing software. evaluated over 100 studies of existing manual and computerized 2D and 3D methods for quantitative measurements of spinal curvature from medical images and concluded that many computerized methods remained too complex and were not appropriate for routine clinical use because of their variability.
The concept of inclinometer based Cobb angle measurement was first proposed by Whittle and Evans. In 2008, Kotwicki stated that classical radiography assessed with the Cobb Method is still the most important image-based method for assessment of scoliosis patients. The Cobb method remains the most popular method for assessment of abnormal spinal curves in both coronal and sagittal planes since it was adopted by the Scoliosis Research Society in 1966.
#PROTRACTOR MEASUREMENTS FREE#
I think I’d be less annoyed by incessant ads, banners, etc than by someone’s intently programmed measures to inconvenience anyone using the free version without any intent of at least gaining money by showing ad slots or anything of the sort.Measurement of Cobb angles from plane radiographs is routine practice to monitor the progression of spinal deformities in spinal clinics worldwide. It’s not even an ad, it’s just telling you to buy premium. Even just trying to use the radian protractor will periodically prompt you every set amount of seconds spent moving the measuring slider about not owning premium and lock you out of touching anything in the app for 12 seconds. Just about every feature is a premium feature, meaning unless you’re forking over the money for premium it’s just a radian protractor. It’s defaulted in radians and if you try to use degrees it will prompt you to buy premium. I have never seen an app go through so many measures to force you to buy the upgraded version, even apps that don’t offer a free version do less to convince you to pay them.
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