Efficacy and reliability of highly functional open source DICOM software (OsiriX) in spine surgery

Yamauchi, Tomonori; Yamazaki, Masashi; Okawa, Akihiko; Furuya, Takeo; Hayashi, Kôichi; Sakuma, Takashi; Takahashi, Hiroshi; Yanagawa, Noriyuki; Koda, Masao

doi:10.1016/j.jocn.2009.09.037

Cited by 50 publications

(33 citation statements)

References 8 publications

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“…Thereby, our plug-in provides quality management for perfusion analysis. While implementing the plug-in, an interface to easily We selected OsiriX as platform since it is already used in several clinical applications, ranging from reading multimodal images to spine surgery or aortic stent graft planning [34,37,40,41]. In addition, a plug-in interface allows extending the OsiriX software and numerous plug-ins already exist [36].…”

Section: Discussionmentioning

confidence: 99%

UMMPerfusion: an Open Source Software Tool Towards Quantitative MRI Perfusion Analysis in Clinical Routine

et al. 2012

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To develop a generic Open Source MRI perfusion analysis tool for quantitative parameter mapping to be used in a clinical workflow and methods for quality management of perfusion data. We implemented a classic, pixel-by-pixel deconvolution approach to quantify T1-weighted contrastenhanced dynamic MR imaging (DCE-MRI) perfusion data as an OsiriX plug-in. It features parallel computing capabilities and an automated reporting scheme for quality management. Furthermore, by our implementation design, it could be easily extendable to other perfusion algorithms. Obtained results are saved as DICOM objects and directly added to the patient study. The plug-in was evaluated on ten MR perfusion data sets of the prostate and a calibration data set by comparing obtained parametric maps (plasma flow, volume of distribution, and mean transit time) to a widely used reference implementation in IDL. For all data, parametric maps could be calculated and the plug-in worked correctly and stable. On average, a deviation of 0.032±0.02 ml/100 ml/ min for the plasma flow, 0.004±0.0007 ml/100 ml for the volume of distribution, and 0.037±0.03 s for the mean transit time between our implementation and a reference implementation was observed. By using computer hardware with eight CPU cores, calculation time could be reduced by a factor of 2.5. We developed successfully an Open Source OsiriX plugin for T1-DCE-MRI perfusion analysis in a routine quality managed clinical environment. Using model-free deconvolution, it allows for perfusion analysis in various clinical applications. By our plug-in, information about measured physiological processes can be obtained and transferred into clinical practice.

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Section: Discussionmentioning

confidence: 99%

UMMPerfusion: an Open Source Software Tool Towards Quantitative MRI Perfusion Analysis in Clinical Routine

et al. 2012

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“…According to Yamauchi et al 15 and Costa et al 20 and also Cavalcanti,21 OsiriX is easy-to-use open source software, offering advanced and useful postprocessing imaging protocols, thus making it a versatile DICOM viewer offering regular updates. In our opinion the post-processing method used in this software is a new and important tool for the den- 21 our study demonstrated the assessment of MF and AMF for implant planning.…”

Section: Discussionmentioning

confidence: 99%

Assessment of open source software for CBCT in detecting additional mental foramina

et al. 2013

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The purpose of this study was to evaluate which post-processing imaging protocol would be better to analyze the additional mental foramen (AMF) in preoperative planning with cone-beam computed tomography (CBCT) exams, and to test reproducibility of measurements, using open source software (OsiriX). The software was used to detect the cases of AMF from among 58 exams for dental implant planning in edentulous mandible areas-three cases were found. The case images were submitted to qualitative analysis using 2D orthogonal MPR, 3D-MPR and 3D volume rendering protocols by two oral and maxillofacial radiologists. Quantitative analysis used the 3D-MPR protocol; the closed polygon tool measured the mental foramen (MF) and the AMF areas; the length tool measured the distance between foramina. The measurements were performed independently by the examiners, at two different times. Intra-and interexaminer agreement was assessed using the intraclass correlation coefficient. The panoramic view did not show the MF and the AMF clearly. The AMF could be detected in the parasagittal view. 2D Orthogonal MPR was effective to observe the AMF in some cases. The 3D-MPR and 3D view protocols were the most effective to locate and analyze the AMF. In conclusion, a 3D view improves visualization when anatomical points are not clearly visible. 3D-MPR was considered a more effective post-processing imaging protocol to observe foramina relationships. The high reproducibility of measurements for anatomical MF variations was established using specific tools featured in open source software for CBCT. OsiriX is realistic and recommended for preoperative planning.

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“…Here we describe a physical-optical tomography technique based on grinding tomography. The tomograms have been treated with OsiriX biomedical image software (e.g., Weidenhagen et al 2008;Melissano et al 2009;Yamauchi et al 2010). OsiriX software as an advanced open-source and picture archiving and communication system (PACS) workstation is compatible with JPG and TIFF files from the flat-bed scanner and provides modern image reconstruction methods such as multi-planar reconstruction (MPR, virtual slices through the volume in a different plane to the original grinding tomograms), surface rendering (SR, a threshold value of color is defined, e.g., the color levels that corresponds to the outer shell, and from this a 3D model can be constructed based on different algorithms) and volume-rendering (VR, this technique uses an optical model to map data values to optical properties, such as color and opacity) (Ratib and Rosset 2006).…”

Section: Three-dimensional Reconstructionsmentioning

confidence: 99%

3D morphometry of polyconitid rudist bivalves based on grinding tomography

Pascual-Cebrian

Hennhöfer

Götz

2012

Facies

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Previous taxonomic studies have shown that polyconitid rudists have a characteristic arrangement of the myocardinal system with an ectomyophoral cavity on the posterior side of the left valve. The specific arrangement of the myophores and associated cavities defines the different genera. However, there has been little research on the three-dimensional spatial distribution and size of the internal features, for want of a technique that is suitable for large and low density-contrast specimens. The tomographic technique described herein is based on automatic serial grinding and serial scanning; the resulting images are treated with biomedical image software. The technique has been applied to a pair of well-preserved specimens of Polyconites verneuili from the Upper Aptian of Spain. Fifteen quantitative characters have been obtained using multiplanar virtual cuts, volume-rendering, and isosurfaces reconstructions. The study revealed the shape, size, and distribution of the ectomyophoral, body and accessory cavities, the lengths and volumes of the teeth, and the arrangement of the myophores. We conclude that this technique facilitates the description of rudist bivalves and is suitable for other fossils; moreover, it has the potential to be used in other fields of geology.

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Efficacy and reliability of highly functional open source DICOM software (OsiriX) in spine surgery

Cited by 50 publications

References 8 publications

UMMPerfusion: an Open Source Software Tool Towards Quantitative MRI Perfusion Analysis in Clinical Routine

UMMPerfusion: an Open Source Software Tool Towards Quantitative MRI Perfusion Analysis in Clinical Routine

Assessment of open source software for CBCT in detecting additional mental foramina

3D morphometry of polyconitid rudist bivalves based on grinding tomography

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