Morphological errors in 3D bone models of the distal femur and proximal tibia generated from magnetic resonance imaging and computed tomography determined using two registration methods

Author(s):  
Valentina Campanelli ◽  
Stephen M. Howell ◽  
Maury L. Hull
2018 ◽  
Vol 1 (Supplement) ◽  
pp. 36
Author(s):  
R. Turcu ◽  
A. Barbilian

Abstract Introduction. 30 years ago, the primary role of radiology in tumor pathology was predominant in establishing the diagnosis. A wide range of techniques has been developed, allowing the interventionist radiologist to apply new procedures to patients with tumor pathology. This improved both the diagnosis and the treatment of tumor lesions. Material and method. A 19-year-old male patient, accused pain and functional knee failure, and pain in the ipsilateral ankle, which started about three months before, because of a sprain. Following the clinical examination, a suspicion of a meniscal lesion associated with a lesion of the ankle ligament complex arose. The magnetic resonance imaging revealed the meniscal lesion, but changes in the proximal tibia were observed, which required computed tomography of the knee. The presence of an osseous tumor at the proximal tibia was revealed. Given the unpredictable evolution of tumors in young people, a bone scintigraphy was decided to be performed. Results. The imaging studies commonly used in assessing the patient with musculoskeletal tumor pathology are radiographs, nuclear magnetic resonance, computed tomography, bone scintigraphy. Magnetic resonance imaging is the most sensitive method of diagnosis, allowing the assessment of the extent of the tumor formation in the medullary canal, but also in the adjacent soft tissues. Conclusion. After analyzing the patient’s history, the clinical, paraclinical and imaging examination, and the differential diagnosis will be established and the optimal treatment will be decided in this case.


2014 ◽  
Vol 38 (2) ◽  
pp. 212-214 ◽  
Author(s):  
Mehmet Beyazal ◽  
Necip Pirinççi ◽  
Alpaslan Yavuz ◽  
Sercan Özkaçmaz ◽  
Gülay Bulut

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sang Wha Kim ◽  
Adams Hei Long Yuen ◽  
Cherry Tsz Ching Poon ◽  
Joon Oh Hwang ◽  
Chang Jun Lee ◽  
...  

AbstractDue to their important phylogenetic position among extant vertebrates, sharks are an invaluable group in evolutionary developmental biology studies. A thorough understanding of shark anatomy is essential to facilitate these studies and documentation of this iconic taxon. With the increasing availability of cross-sectional imaging techniques, the complicated anatomy of both cartilaginous and soft tissues can be analyzed non-invasively, quickly, and accurately. The aim of this study is to provide a detailed anatomical description of the normal banded houndshark (Triakis scyllium) using computed tomography (CT) and magnetic resonance imaging (MRI) along with cryosection images. Three banded houndsharks were scanned using a 64-detector row spiral CT scanner and a 3 T MRI scanner. All images were digitally stored and assessed using open-source Digital Imaging and Communications in Medicine viewer software in the transverse, sagittal, and dorsal dimensions. The banded houndshark cadavers were then cryosectioned at approximately 1-cm intervals. Corresponding transverse cryosection images were chosen to identify the best anatomical correlations for transverse CT and MRI images. The resulting images provided excellent detail of the major anatomical structures of the banded houndshark. The illustrations in the present study could be considered as a useful reference for interpretation of normal and pathological imaging studies of sharks.


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