Gordon Andrews's research while affiliated with University of British Columbia and other places

... The dependence of the CT number in a specific material against the tube voltage, in general, occurs due to different attenuation coefficient, which is strongly influenced by two aspects, i.e., the energy of the incident photon and the effective atomic number of the material (McCollough et al., 2015;Hamid et al., 2021). Each material has a different behaviour regarding its dependence on the energy of the incident photon (Mahmoudi et al., 2016;Saini et al., 2021). ...

... Iodine maps can also enhance the visualization of extraluminal iodine components, therefore helping the detection of urinary leakage in trauma patients [21] or as a result of iatrogenic damage [22]. ...

... Iron maps have potential to quantify iron deposition in myocardium similar to MRI additional validated cardiothoracic applications include myocardial perfusion, myocardial ischemia, aortic disease, endoleak, and pulmonary perfusion defects [41,46]. Recent studies have shown that pulmonary angiography on newer DECT scanners results in improved subjective and objective image quality without increased radiation exposure as compared to older generation DECT scanners and standard CT image acquisition [48,49]. By using a combination of low keV virtual monenergistic images to boost contrast enhancement as well as iodine density map images to visualize and quantify enhancement, pulmonary perfusion defects of pulmonary arterial or venous origin that may have been missed on an initial screening are better detected (Fig. 8) [53]. ...

... Osteokondritis disekans, sıklıkla kapitellum anteriolateraline lokalize olmaktadır [12]. Kapitellum psödodefekti ise tipik olarak daha posteriorda yerleşir [13]. Eşlikçi kemik iliği ödemi yokluğu ve posterior lokalizasyonu osteokondral lezyonlardan ayırt edici özellikleridir [14]. ...

... Эти варианты ИС требуют дифференцированного терапевтического и хирургического подхода (табл. 1) [10][11][12]. ...

... Myelination begins at approximately 4 months of age and continues well into adolescence. [12,15] Myelin not only serves as an insulator for nerve fibers but it also allows fibers to transfer information more quickly. Interestingly, there is not a direct correlation between the total number of neocortical neurons and the number of myelinated callosal fibers. ...

... root avulsion fractures are also referred to as meniscal ossicles by some authors [5,10,36]. Other authors, however, define meniscal ossicles as mature bone embedded within the substance of the meniscus [38,43,47]. Meniscal ossicles are rare findings with a reported prevalence of 0.15 % in 1,287 consecutive MrI examinations [40]. ...

... The diagnostic value of MR studies; however, have been shown to vary considerably with field strength (1)(2)(3). Also certain pathologies are better seen in specific sequences and imaging planes, and can easily be missed if the study is substandard in image acquisition and planning (4,5). ...

... Indeed, trabeculae subjected to this forced process exhibit microfractures, accompanied by the presence of BME on MRI. Mild trauma causes the appearance of BME without detectable damage to the cellular elements, whereas more severe trauma causes the appearance of microfractures and hemorrhage in the trabecular bone [10,12,14]. ...

... The four muscles of the quadriceps (namely, the vastus medialis, vastus lateralis, vastus intermedius, and rectus femoris), tendon of the quadriceps, patella, patellar tendon attachment to tibia, and retinaculum are the critical components of knee extension [6,7]. A concurrent, unexpected quadriceps tendon rupture on both sides after total knee arthroplasty is an unlikely orthopedic injury [8,9]. A disturbance in the extensor mechanism is a severe consequence of total knee arthroplasty, with a reported incidence of 0.17 to 2.5 percent [10,11]. ...