[Clinical quality governance-a practical approach in general practice with the example of influenza vaccination].

We understand clinical quality governance (CQG) as quality management in the clinical domain. In 2020, presumably due to the coronavirus pandemic, more patients requested to be vaccinated against influenza as compared to previous years so that it became apparent that there would be a shortage for high-risk patients. To meet the problem, we started a CQG process.

The placement of foot-mounted IMU sensors does affect the accuracy of spatial parameters during regular walking.

Gait analysis using foot-worn inertial measurement units has proven to be a reliable tool to diagnose and monitor many neurological and musculoskeletal indications. However, only few studies have investigated the robustness of such systems to changes in the sensor attachment and no consensus for suitable sensor positions exists in the research community. Specifically for unsupervised real-world measurements, understanding how the reliability of the monitoring system changes when the sensor is attached differently is from high importance.

Retrospective Analysis of Training and Its Response in Marathon Finishers Based on Fitness App Data.

Finishing a marathon requires to prepare for a 42.2 km run. Current literature describes which training characteristics are related to marathon performance.

Does the Position of Foot-Mounted IMU Sensors Influence the Accuracy of Spatio-Temporal Parameters in Endurance Running?

Wearable sensor technology already has a great impact on the endurance running community. Smartwatches and heart rate monitors are heavily used to evaluate runners' performance and monitor their training progress. Additionally, foot-mounted inertial measurement units (IMUs) have drawn the attention of sport scientists due to the possibility to monitor biomechanically relevant spatio-temporal parameters outside the lab in real-world environments.

Comparison of Different Algorithms for Calculating Velocity and Stride Length in Running Using Inertial Measurement Units.

Running has a positive impact on human health and is an accessible sport for most people. There is high demand for tracking running performance and progress for amateurs and professionals alike. The parameters velocity and distance are thereby of main interest.

Movement Speed Estimation Based on Foot Acceleration Patterns.

Wearable sensors are important in today's athlete training ecosystems and also for the monitoring of therapeutic rehabilitation processes or even the diagnosis of diseases. In the future, wearables will be integrated directly into clothing and require dedicated, low-energy consuming algorithms that still maintain high accuracy. We developed a novel algorithm for the task of movement speed determination based on wearables that track only the acceleration of one foot.

[Determination of monitor radiation scattering contribution in photon radiation of clinical electron linear accelerators].

Background: Modern linear accelerators permit the use of irregular fields due to their flexible collimator systems with separately movable jaws or multileaf collimators. When using such irregular fields in the clinical practice output factors have to be corrected for enhanced backscatter to the dose monitor as compared with the conventional block shieldings.

Methods: A method is presented to detect the monitor backscatter contributions to the output factor for irregular field settings.

[Sonographic diagnosis of liver tumors. Results of comparative studies of ultrasound, computerized tomography, laparoscopy, biopsy and scintigraphy in 413 patients].

Based on a retrospective study of 413 patients, the accuracy of sonography compared to CT, laparoscopy, biopsy and scintigraphy in the primary diagnosis of liver masses is shown. False positive sonographic reports are analysed in retrospect. 190 of 338 solid space-occupying growths of the liver have sonographically been called definite growths and 148 have been considered suspicious of being such growths.

[Sonographic diagnosis of kidney calculi--comparative study of ultrasound, excretory urography and computer tomography in 310 patients].

The authors compared the value of sonography with I.V. urography and CT in the diagnosis of nephrolithiasis, employing a retrospective study conducted on 310 patients.

[2-dimensional echoencephalography or cranial CT in premature or newborn infants with suspected intracranial hemorrhages].

65 newborns or low-birthweight infants with suspicion of intracranial hemorrhage were examined with B-mode small part scanners. In 12 cases the diagnosis made by ultrasound could be compared with CT. There was a similar accuracy of both methods in case of intraventricular (IVH) and subependymal (SEH) hemorrhage.

[Computerized tomography of the liver. Accuracy of the method in biopsy proven diagnoses (author's transl)].

To evaluate the diagnostic accuracy of computerized tomography (CT) in detecting liver disease, CT-findings of 320 patients examined with a slow CT-scanner (2.5 min scanning time/slice) could be compared to the results of bioptic procedures. Sensitivity was 81% for circumscript liver disease, specificity was 85%.

Computed tomography in hydatid disease of the liver: a report on 13 cases.

Computed tomography (CT) findings in hydatid disease (echinococciasis) of the liver are described. Disease was caused by Echinococcus granulosus (n = 8) or E. alveolaris (n = 5), respectively.