Malte Schmidt

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BACKGROUND Cholecystectomy is routinely recommended to prevent recurrent disease after an initial episode of acute cholecystitis. Therefore, randomized controlled trials have mainly focused on the timing of surgery, but many patients scheduled for cholecystectomy have deferred surgery with long periods of symptom-free intervals. Our present aim is to(More)
BACKGROUND The fate of asymptomatic gallstones has not been investigated in many studies with a long-term follow-up. We wanted to examine the subsequent rate of cholecystectomy and gallstone-related symptoms in a population examined in 1983. METHODS Among the persons examined in 1983, unknown (perceived as silent) gallstones were discovered in 20.1%(More)
BACKGROUND Our aim was to investigate cancer incidence and the cause of long-term mortality in different gallstone diseases and conditions. STUDY DESIGN The study population consisted of 2034 subjects: 224 persons diagnosed with asymptomatic gallstones in 1983, 254 patients who underwent cholecystectomy in 1983, and 513 patients with symptomatic(More)
BACKGROUND/AIMS Cholecystectomy is considered the treatment of choice for symptomatic gallstone disease. Some patients abstain from surgery and provide the opportunity to study the natural history of cholelithiasis. The aim of the present study was to examine the feasibility and safety of observation after extended long-term follow-up in a randomized(More)
AIM To classify gallstone disease as a basis for assessment of post-cholecystectomy symptoms. METHODS One hundred and fifty three patients with a clinical and ultrasonographic diagnosis of gallstones filled out a structured questionnaire on abdominal pain symptoms and functional gastrointestinal disorder (FGID) before and at six months after(More)
BACKGROUND The number and rate of cholecystectomy are increasing worldwide, although indications for operative treatment remain empirical, and several issues in the understanding of the condition are not concisely outlined. Our intention is to summarize and interpret current opinion regarding the indications and timing of cholecystectomy in calculous(More)
Today barcode is the dominant auto-ID technology in the automotive supply chain. The prevalence of barcode is likely to affect the adoption and diffusion of RFID technology. In this paper, we focus on the migration from barcode to RFID in the automotive industry and point out the relevance of barcode for future RFID rollouts. We study the case of a RFID(More)
The adoption and diffusion of RFID in logistics falls short behind the optimistic expectations shaped years ago. The complexity of large-scale RFID rollout projects is a barrier for widespread adoption and diffusion of RFID. Current RFID specific project management frameworks address the implementation of isolated RFID projects but provide very limited(More)
The steadily growing use of license-free frequency bands requires reliable coexistence management for deterministic medium utilization. For interference mitigation, proper wireless interference identification (WII) is essential. In this work we propose the first WII approach based upon deep convolutional neural networks (CNNs). The CNN naively learns its(More)