Open Access

Introduction: Patients who are overweight or obese have an increased risk of developing type 2 diabetes mellitus (T2DM). Weight loss can have a positive effect on glycemic control. Objective: We aimed to investigate glycemic control in patients with T2DM and overweight or obesity during a structured weight-loss program. Methods: This was a prospective, interventional study. We recruited 36 patients (14 men and 22 women) with a median age of 58.5 years and median body mass index (BMI) of 34.1, to a 15-week structured weight-loss program with a low-calorie (800 kcal) formula diet for 6 weeks. The primary end point, HbA_1c level, and secondary end points, anthropometric data, medication, and safety, were assessed weekly. Laboratory values and quality of life were assessed at baseline and after 15 weeks. Results: HbA_1c decreased from 7.3% at baseline to 6.5% at 15 weeks (p < 0.001), median body weight by 11.9 kg (p < 0.001), median BMI by 4.3 (p < 0.001) and median waist circumference by 11.0 cm (p < 0.001). Two participants discontinued insulin therapy, 4 could reduce their dosage of oral antidiabetic agents, and 6 completely discontinued their antidiabetic medication. Insulin dose decreased from 0.63 (0.38–0.89) to 0.39 (0.15–0.70) units/kg body weight (p < 0.001). No patient experienced hypoglycemic episodes or hospital emergency visits. Triglycerides and total cholesterol decreased as well as surrogate markers of liver function. However, the levels of high-density and low-density lipoprotein cholesterol (HDL-C and LDL-C) as well as uric acid remain unchanged. Regarding quality of life, the median physical health score increased from 44.5 (39.7–51.4) at baseline to 48.0 (43.1–55.3; p = 0.007), and the median mental health score decreased from 42.1 (36.1–46.7) to 37.4 (30.3–43.7; p = 0.004). Conclusions: A structured weight-loss program is effective in the short term in reducing HbA_1c, weight, and antidiabetic medication in patients with T2DM who are overweight or obese. Levels of HDL-C and LDL-C were not affected by short-term weight loss. The decline in mental health and the long-term effects of improved glycemic control require further trials.

We, here, provide a personal review article on the development of a functional MRI in the radiology departments of two German university medicine units. Although the international community for human brain mapping has met since 1995, the researchers fascinated by human brain function are still young and innovative. However, the impact of functional magnetic resonance imaging (fMRI) on prognosis and treatment decisions is restricted, even though standardized methods have been developed. The tradeoff between the groundbreaking studies on brain function and the attempt to provide reliable biomarkers for clinical decisions is large. By describing some historical developments in the field of fMRI, from a personal view, the rise of this method in clinical neuroscience during the last 25 years might be understandable. We aim to provide some background for (a) the historical developments of fMRI, (b) the establishment of two research units for fMRI in the departments of radiology in Germany, and (c) a description of some contributions within the selected fields of systems neuroscience, clinical neurology, and behavioral psychology.

Die hier vorliegende Studie bestätigt die Hypothese, dass die Integration der 3D- Voxel-basierten morphometrischen Analyse in den klinisch diagnostischen Algorithmus der Epilepsien und insbesondere bei der Diagnostik der kryptogenen Epilepsien einen entscheidenden Vorteil bringt. Der diagnostische Mehrwert für KFE lag dabei in der Detektion von vorher unbekannten FCD bei 3,6% (3 aus 84) und führte in weiteren 6% (5 aus 84) zur Diagnoseänderung durch teilweise sehr subtile und teilweise sehr eindeutige Befunde, welche zuvor in der nativen Bildgebung übersehen wurden. Dabei besitzt diese Analyse eine hohe Sensitivität (1,0) und leidet unter einer geringen Spezifität (0,23-0,25), welche durch erneute Betrachtung und Konsensfindung erhöht wird. Über eine erweiterte Diagnostik und die Epilepsiechirurgie kann das MAP zu einer ökonomischeren und erfolgreicheren Therapie von kryptogenen Epilepsien und zu einer besseren Anfallskontrolle und damit Lebensqualität für den Patienten führen. Die Implementierung dieses Verfahrens in den Diagnostikalgorithmus in einem tertiären Epilepsiezentrum ist wenig zeit- und kostenintensiv und bietet zusätzlich durch eine Übertragbarkeit in andere Fachgebiete und durch einen „zweiten diagnostischen Blick“ auf bereits gesehene Bilder einen Vorteil gegenüber rein nativer Bildgebung. Die Weiterentwicklung beispielsweise durch künstliche Intelligenz ist Gegenstand aktueller Studien.

ObjectiveWhole-body MRI (wb-MRI) is increasingly used in research and screening but little is known about the effects of incidental findings (IFs) on health service utilisation and costs. Such effects are particularly critical in an observational study. Our principal research question was therefore how participation in a wb-MRI examination with its resemblance to a population-based health screening is associated with outpatient service costs.DesignProspective cohort study.SettingGeneral population Mecklenburg-Vorpommern, Germany.ParticipantsAnalyses included 5019 participants of the Study of Health in Pomerania with statutory health insurance data. 2969 took part in a wb-MRI examination in addition to a clinical examination programme that was administered to all participants. MRI non-participants served as a quasi-experimental control group with propensity score weighting to account for baseline differences.Primary and secondary outcome measuresOutpatient costs (total healthcare usage, primary care, specialist care, laboratory tests, imaging) during 24 months after the examination were retrieved from claims data. Two-part models were used to compute treatment effects.ResultsIn total, 1366 potentially relevant IFs were disclosed to 948 MRI participants (32% of all participants); most concerned masses and lesions (769 participants, 81%). Costs for outpatient care during the 2-year observation period amounted to an average of €2547 (95% CI 2424 to 2671) for MRI non-participants and to €2839 (95% CI 2741 to 2936) for MRI participants, indicating an increase of €295 (95% CI 134 to 456) per participant which corresponds to 11.6% (95% CI 5.2% to 17.9%). The cost increase was sustained rather than being a short-term spike. Imaging and specialist care related costs were the main contributors to the increase in costs.ConclusionsCommunicated findings from population-based wb-MRI substantially impacted health service utilisation and costs. This introduced bias into the natural course of healthcare utilisation and should be taken care for in any longitudinal analyses.

Background: This study aimed to prospectively investigate patients’ satisfaction with briefings before computed tomography (CT) examinations, determine feasibility, and identify factors influencing patient satisfaction independent of patient and physician characteristics. Methods: One hundred sixty patients received information by a radiologist prior to contrast-enhanced CT examinations in an open, prospective, two-center, cross-sectional study (including the introduction of the radiologist, procedure, radiation exposure, possible side effects, and alternatives). Afterwards, patients and radiologists evaluated the briefing using a standardized questionnaire. Additionally, factors such as age, socioeconomic status, inpatient/outpatient status, length of the radiologist’s professional experience, duration of the briefing, clarity of the radiologist’s explanations as perceived by patients, and the duration of communication were obtained in this questionnaire. Subsequently, three classes of influencing factors were defined and entered stepwise into a hierarchical regression. Results: Patient satisfaction ratings differed significantly by type of hospitalization, perceived type of communication, and patient gender. Hierarchical regression analysis revealed that perceived clarity was the strongest predictor of patients’ satisfaction when controlling for the patient and physician characteristics. Conclusions: Patients appeared to be satisfied with the briefing prior to CT examination. The mean briefing time (2 min 35 s) seemed feasible. Patients’ demographics influenced satisfaction. To improve patients’ satisfaction with briefings before contrast-enhanced CT, radiologists should aim to clarify their communication. Keywords: Doctor-patient communication, Informed consent, Patients’ satisfaction, Contrast-enhancement