Projection radiography of the ankle; the views used for different indications vary between medical imaging departments

Plain radiographs are used for initial evaluation of many conditions of the ankle. Many different radiographic views are described in positioning textbooks but evidence on which views to use, in which case, is scarce. The aim of this study was to map imaging procedures related to four indications for ankle projection radiography. A questionnaire was sent to all medical imaging departments in Iceland with questions about acquisition technique for ankle radiography views and which views were used for selected indications. Answer was received from 14 of the 28 departments. All departments gave very similar descriptions of the four most common views. In the case of trauma, all but one department used four views but for control of trauma or operation, four different combinations of views were found using from two to four images. For detrition and osteomyelitis, four views were more common in the larger departments but there was not a statistically significant difference. Eight different combinations of the number of views for the four indications were found. The study indicates that there is a need for standardization in image acquisition protocols. More studies are needed to support decisions about how many views are necessary for the most common ankle radiography indications.

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3D GRASE PROPELLER: Improved image acquisition technique for arterial spin labeling perfusion imaging

Magnetic Resonance in Medicine ◽

10.1002/mrm.22768 ◽

2011 ◽

Vol 66 (1) ◽

pp. 168-173 ◽

Cited By ~ 22

Author(s):

Huan Tan ◽

W. Scott Hoge ◽

Craig A. Hamilton ◽

Matthias Günther ◽

Robert A. Kraft

Keyword(s):

Perfusion Imaging ◽

Arterial Spin Labeling ◽

Image Acquisition ◽

Spin Labeling ◽

Acquisition Technique

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Measurement of Calcaneal Angles and Its Clinical Significance in Han Chinese Adults in Northwest China

10.21203/rs.3.rs-711152/v1 ◽

2021 ◽

Author(s):

Xianghui Dong ◽

ZhanKui Jin ◽

ZhengMing Sun ◽

Jing Chen ◽

YanHai Chang ◽

...

Keyword(s):

Pearson Correlation ◽

Age Groups ◽

Han Chinese ◽

Radiology Department ◽

Reference Ranges ◽

Chinese Adults ◽

Mean Values ◽

Plain Radiographs ◽

Significant Difference ◽

Ankle Joints

Abstract Objective We aimed to investigate differences in and trends of normal calcaneal angles among Han Chinese adults from different age groups to establish normal reference ranges of calcaneal angles in these age groups, thereby providing a theoretical basis and morphological reference for the treatment of calcaneal fractures. Methods We collected lateral plain radiographs (X-ray) of the normal ankle joints of 6,260 Han Chinese adults who visited the Radiology Department of Shaanxi Provincial People’s Hospital between November 2008 and December 2020 to measure the calcaneal angles, including the Böhler angle (BA), Gissane angle (GA), calcaneal pitch angle (CPA), posterior facet inclination angle (PFIA), and calcaneal-tibial angle (CTA). On this basis, we analyzed the calcaneal angles in different age groups to summarize the characteristics of normal calcaneal angles in Han Chinese adults. Results According to the lateral plain radiographs of the normal ankle joints of 6,260 (male: 3,380; female: 2,880) adults (mean age: 46.3 ± 18.2 ), the mean values of the BA, GA, CPA, PFIA, and CTA were 33.17° ± 6.08°, 114.99° ± 8.17°, 25.67° ± 4.72°, 64.35° ± 8.51°, and 91.59° ± 11.57°, respectively. Results of the Pearson correlation analysis suggested negative correlations between age and both BA and PFIA (P < 0.01, respectively) but a lack of correlation between age and the GA, CPA or CTA (P > 0.05, respectively). One-way analysis of variance (ANOVA) and the least significant difference (LSD) test showed that at above the age of 18, there were statistically significant differences both in the BA between different age groups and in the PFIA between different age groups above 41 years old. Conclusion In Han Chinese adults, there are significant differences in BA and PFIA between different age groups, with these calcaneal angles exhibiting a trend of decrease with age.

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Application of Standardized Measures in Clinical Teaching of Medical Imaging Department

Journal of Clinical and Nursing Research ◽

10.26689/jcnr.v4i2.1082 ◽

2020 ◽

Vol 4 (2) ◽

Author(s):

Chunhua Qi

Keyword(s):

Medical Students ◽

Medical Imaging ◽

Clinical Teaching ◽

Group Performance ◽

Control Group ◽

Standardized Measures ◽

Imaging Department ◽

Significant Difference ◽

Observational Group ◽

Assessment Result

Objective: To explore the application of standardized measures in clinical teaching of medical imaging department. Methods: Forty-eight medical interns in Department of Medical Imaging of our hospital from February 2018 to May 2019 were selected as research objects. They were divided into 2 groups according to random number table method, with 24 cases in each group. Routine education management was performed in clinical teaching for control group, standardized measure management was performed in clinical teaching for observational group. Performance assessment before and after intervention was compared between two groups of medical students. Results: Before intervention, there was no significant difference in assessment result between two groups of medical students (P>0.05). Assessment result after intervention was higher than before intervention in two groups of medical students. Observational group was higher than control group, the difference was statistically significant (P<0.05). Conclusions: Implementation of standardized measures in clinical teaching of medical imaging department could significantly improve assessment result of medical students, and its application can be considered in clinical teaching.

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How much is the effective dose from medical imaging in pediatric patients in the neurosurgery department?

Radioprotection ◽

10.1051/radiopro/2021014 ◽

2021 ◽

Author(s):

B. Zeinali-Rafsanjani ◽

S. Haseli ◽

R. Jalli ◽

M. Saeedi-Moghadam

Keyword(s):

Medical Imaging ◽

Ionizing Radiation ◽

Ct Scan ◽

Effective Dose ◽

Pediatric Patients ◽

Ct Scans ◽

Imaging Data ◽

Plain Radiographs ◽

Brain Ct ◽

Abdomen Ct

Medical imaging with ionizing radiation in pediatric patients is rising, and their radiation sensitivity is 2–3 times more than adults. The objective of this study was to estimate the total effective dose (ED) of all medical imaging by CT scan and plain radiography in patients in pediatric neurosurgery department. Patients with at least one brain CT scan and recorded dose length product (DLP) were included. Patients’ imaging data were collected from the picture-archiving-and-communicating system (PACS) using their national code to find all their medical imaging. Total ED (mSv) from CT scans and plain radiographs were calculated. A total of 300 patients were included, of which 129 were females and 171 males with a mean age of 5.45 ± 4.34 years. Mean DLPs of brain, abdomen, and chest CT were 329.16, 393.06, 284.46 mGy.cm. The most frequent CT scans in these children were brain CT scans with ED range of 0.09 to 47.09 mSv. Total ED due to all CT scans and plain radiographs were in the range of 0.38 to 63.41 mSv. Although the mean DLP of each brain, chest, and abdomen CT of patients was in the range of DRLs reported by previous studies, the patients with numerous CT scans received more radiation doses than mean ED (6.21 mSv between all age groups). The most frequent CT scan was the brain, and the most frequent plain radiographs were chest and lower extremities. It can be concluded that reducing the number of CT scans or plain radiographs by appropriate physical exams or replacing them with modalities that do not use ionizing radiation can reduce ED.

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Application of 3D Modeling and Fusion Technology of Medical Image Data in Image Teaching

10.21203/rs.3.rs-92673/v1 ◽

2020 ◽

Author(s):

Quan Yuan ◽

Xiaomei Chen ◽

Jian Zhai ◽

Yadi Chen ◽

Qingxiang Liu ◽

...

Keyword(s):

Medical Imaging ◽

Self Efficacy ◽

Assessment System ◽

The Self ◽

Learning Ability ◽

Control Group ◽

Learning Behavior ◽

Self Directed Learning ◽

Significant Difference ◽

Directed Learning

Abstract Backgroundwe combined anatomy with imaging, transformed the 2D information of various imaging techniques into 3D information, and form the assessment system of real medical imaging cases in order to make up for the deficiencies in the current teaching of the medical imaging technology students. MethodsA total of 460 medical imaging students were selected and randomly divided into two groups. The research group received the teaching of the fusion of the original CT and MR data 3D model and the original image combined with 3D anatomical image. Statistical analysis Academic self-efficacy scale and Self-directed learning ability scale was adopted by self-directed learning evaluation scale between two groups.ResultsCompare the theoretical scores and case analysis scores of the two groups. The scores of the study and control groups were significantly higher than those of the control group.Before the experiment, no significant difference was detected in the self-efficacy of learning ability and learning behavior between the two groups , while after the experiment, these differences between the two groups were statistically significan. Moreover, the learning ability self-efficacy and learning behavior of the two groups of students after the experiment was significantly higher than that before the experiment. The self-efficacy of the learning behavior of the control group was higher after the experiment than that before the experiment, albeit the difference was not statistically significant . ConclusionsThe modern, information-based and humanized experimental teaching mode will be constantly improved under the support of PACS system in order to optimize the medical imaging teaching activities for the development of modern medical education.

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Cumulative Radiation Dose From Medical Imaging Procedures in Patients Undergoing Resection for Lung Cancer

Yearbook of Pulmonary Disease ◽

10.1016/j.ypdi.2012.01.069 ◽

2012 ◽

Vol 2012 ◽

pp. 91-94

Author(s):

L.T. Tanoue

Keyword(s):

Lung Cancer ◽

Medical Imaging ◽

Radiation Dose ◽

Imaging Procedures ◽

Cumulative Radiation Dose

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Influence of breast reconstruction on technical aspects of echocardiographic image acquisition compared with physician-assessed image quality

Cardio-Oncology ◽

10.1186/s40959-019-0052-7 ◽

2019 ◽

Vol 5 (1) ◽

Author(s):

Joaquin Duarte Ow ◽

Mohamad Hemu ◽

Anel Yakupovich ◽

Parva Bhatt ◽

Hannah Gaddam ◽

...

Keyword(s):

Breast Cancer ◽

Decision Making ◽

Image Quality ◽

Cardiac Function ◽

Breast Reconstruction ◽

Clinical Decision Making ◽

Image Acquisition ◽

Clinical Decision ◽

Echocardiographic Image ◽

Significant Difference

Abstract Introduction Assessment of cardiac function after treatment for breast cancer relies on interval evaluation of ventricular function through echocardiography. Women who undergo mastectomy more frequently choose to undergo breast reconstruction with implant. This could impede assessment of cardiac function in those with left-sided implant. We aimed to examine whether left-sided breast reconstruction with tissue expanders (TE) affect echo image acquisition and quality, possibly affecting clinical decision-making. Methods A retrospective case-control study was conducted in 190 female breast cancer patients who had undergone breast reconstruction with TE at an urban academic center. Echocardiographic technical assessment and image quality were respectively classified as excellent/good or adequate/technically difficult by technicians; and excellent/good or adequate/poor by 2 board-certified cardiologist readers. Likelihood ratio was used to test multivariate associations between image quality and left-sided TE. Results We identified 32 women (81.3% white; mean age 48 years) with left-sided/bilateral TE, and 158 right-sided/no TE (76.6% white, mean age 57 years). In multivariable analyses, we found a statistically significant difference in technician-assessed difficulty in image acquisition between cases and controls (p = 0.01); but no differences in physician-assessed image quality between cases and controls (p = 0.09, Pearson’s r = 0.467). Conclusions Left-sided breast TE appears to affect the technical difficulty of echo image acquisition, but not physician-assessed echo image quality. This likely means that echo technicians absorb most of the impediments associated with imaging patients with breast TE such that the presence of TE has no bearing on downstream clinical decision-making associated with echo image quality.

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