Malene Roland V. Pedersen

Sygehus Lillebaelt · Department of Radiology

Interdisciplinary research teams may from time to time face collaborative challenges due to many causes, e. g. various medical interests or professional background. Social identity theory offers a framework to understand these dynamics. Diverse interests or medical background can motivate and drive innovation and creativity in research projects but...

Background Anxiety-provoking healthcare procedures require specific child-friendly approaches. Magnetic resonance imaging (MRI) can cause anxiety for children and general anesthesia (GA) is often used. We developed and tested a multi-faceted child-friendly concept, Children Centered Care, for MRI of children without GA. Objective To investigate ch...

Aim The aim of this study was to evaluate the occupational radiation exposure of staff during endoscopic retrograde cholangiopancreatography (ERCP), with a focus on individuals closest to the radiation source, and to identify potential increases in exposure to hands and eye lenses. Patient radiation exposure during ERCP was also assessed. Material...

Virtual reality (VR) simulation is a technology that empowers students and radiographers to practice radiography in a virtual environment that resembles real-life clinical scenarios. The purpose of this randomised study was to examine the relationship between clinical specialty and the ability to assess and obtain a lateral wrist radiograph using a...

Clinical academics experience dual workplaces, namely the clinical and the research environment. However, working in two workplaces leads to difficulties in forming an integrated identity, affecting a person’s work environment and well-being. The aim was to explore how clinical academics experience the psychosocial work environment and their sugges...

Clinical academics experience dual workplaces; the clinical and the research environment. However, working in two workplaces leads to difficulty in forming an integrated identity, and hence affects a person’s work environment and well-being. The aim was to explore how clinical academics experience the psychosocial work environment and their suggest...

Ultrasound elastography is widely used to assess tissue stiffness for lesion characterization, including differentiation between benign and malignant lesions. This study focuses on the use of elastography in the male pelvis, including the prostate, testicles, and rectum, by comparing elastography types (shear wave and strain). This article provides...

Simulation-based training (SBT) is increasingly acknowledged worldwide and has become a popular tool for ultrasound education. Ultrasound simulation involves the use of technology and software to create a virtual training setting. Simulation-based training allows healthcare professionals to learn, practice, and improve their ultrasound imaging skil...

Introduction: The integration of artificial intelligence (AI) into the domain of radiography holds substantial potential in various aspects including workflow efficiency, image processing, patient positioning, and quality assurance. The successful implementation of AI within a Radiology department necessitates the participation of key stakeholders,...

This study aimed to test the accuracy of a magnetic resonance imaging (MRI)-based method to detect and characterise deep venous thrombosis (DVT) in the ilio-femoro-caval veins. Patients with verified DVT in the lower extremities with extension of the thrombi to the iliac veins, who were suitable for catheter-based venous thrombolysis, were included...

Peer reviewers plays a crucial for scientific journals today. The review process is a critical view on the submitted work and should be evaluated by peers within the same scientific area. The experts perform this task outside normal working hours and will typically receive no compensation. The task is to improve the articles’ quality prior to publi...

Simple Summary Adenomas may be mistaken for a malignant tumor during colonoscopy. Patients with confirmed colon tumors during colonoscopy underwent a Magnetic Resonance imaging (MRI) investigation using a 3.0 Tesla unit. We aimed to assess the usefulness of quantitative, diffusion-weighted MRI (DW-MRI) in colon tumors, in which accurate staging is...

Objectives Computed tomography (CT) of the wrist may be challenged, due to patients’ inability to extend the arm for a “Superman pose” resulting in increased radiation dose due to scatter. Alternative positions and less dose administering modalities such as 3D Cone-beam CT (CBCT) and single-shot CT could be considered. This phantom study aimed to e...

Young adults presenting with non-traumatic hip pain may suffer from acetabular retroversion (AR). The previous studies have suggested that patient positioning during the radiographic procedure, that is, pelvic tilt and/or rotation may alter the appearance of the acetabulum. The purpose of this systematic review was to explore and collate existing l...

Background: This study aims to comprehensively understand the motivations driving radiographers in five Arab countries to engage in research. (2) Methods: A cross-sectional study employing an anonymous online survey was conducted for 12 weeks from May to July 2023. The study sample consisted of 250 radiographers, with equal representation from Iraq...

Simulation has been shown to improve clinical learning outcomes, speed up the learning process, and improve trainee confidence, while taking the pressure off initial face-to-face patient clinical areas. The second part of The World Federation for Ultrasound in Medicine and Biology state-of-the-art paper on the use of simulators provides a general a...

Testicular cancer is predominantly diagnosed in young men aged 15-35 years. However, there are some rare tumors such as spermatocytic tumors that are seen more often in the older male population. Spermatocytic tumors have previously been known as spermatocytic seminomas in the scientific literature. We report the cases of 2 patients aged 50 and 77...

Background: Mobile X-ray unit have previously been widely used within hospitals in general, predominately for imaging patients admitted to intensive care units or for patients who cannot tolerate a visit to the radiology department. It is now possible to have an X-ray examination outside the hospital in nursing homes or to bring the service to fra...

Simulation has been shown to improve clinical learning outcomes, speed up the learning process and improve learner confidence, whilst initially taking pressure off busy clinical lists. The World Federation for Ultrasound in Medicine and Biology (WFUMB) state of the art paper on the use of simulators in ultrasound education introduces ultrasound sim...

Simulation has been shown to improve clinical learning outcomes, speed up the learning process and improve learner confidence, whilst initially taking pressure off busy clinical lists. The World Federation for Ultrasound in Medicine and Biology (WFUMB) state of the art paper on the use of simulators in ultrasound education introduces ultrasound sim...

Journal clubs are getting more and more popular and are seen in many variations. A classic journal club is a structured educational meeting for a group of people to discuss, debate, and examine published articles. Journal clubs can be used to gain the latest knowledge in new areas of interest. It is important to educate radiographers and students t...

Background Computed tomography (CT) is a widely used method for the staging of colon cancer. Accurate reports could lead to a better preoperative evaluation and planning of the treatment of colon cancer. Purpose To evaluate the use of CT free-text reports and structured report templates when it comes to staging CT imaging of colon cancer. Materia...

Introduction: This study aimed to investigate the motivation and barriers of clinical radiographers to work with research in a Danish clinical setting. Methods: The project was designed as a mixed method explorative study, including survey and focus group interviews. A paper based survey was distributed to clinical radiographers, with a bachelor...

Introduction A gallbladder polyp is a lesion within the gallbladder wall and are common ultrasound findings. Most polyps are benign but can transform into cancer. Therefore, patients with polyps’ growth are offered follow-up ultrasound examinations over a long period of time. The aim of this study was to investigate long-term follow-up in patents w...

Purpose: To investigate the diagnostic performance of endorectal ultrasound (ERUS), shear-wave elastography (SWE), and magnetic resonance imaging (MRI) in patients with a complex rectal adenoma or an early rectal cancer, i.e., T1 or T2 adenocarcinoma in a clinical setting, and to evaluate the association between SWE and stromal fraction (SF) and a...

Background: Colorectal cancer is the second most common cancer worldwide. The sigmoid takeoff is the landmark where the colon sigmoid curves toward the sacrum viewed from sagittal magnetic resonance imaging (MRI). The purpose of this study was to assess interobserver variability in the assessment of the anal verge and anorectal junction in patients...

Background: Endorectal ultrasound (ERUS) is an important tool when evaluating complex rectal adenomas and rectal cancer, and the accuracy is improved by adding elastography measurements. A high interobserver agreement is imperative in clinical practice. Therefore, the aim of this study was to evaluate interobserver agreement assessed on real-time...

(1) Background: Computer tomography (CT) scanning is currently the standard method for staging of colon cancer; however, the CT based preoperative local staging is far from optimal. The purpose of this study was to investigate the sensitivity and specificity of magnetic resonance imaging (MRI) compared to CT in the T- and N-staging of colon cancer....

In general, magnetic resonance (MR) diffusion-weighted imaging (DWI) has shown potential in clinical settings. In testicles parenchyma, the DW imaging helps differentiate and characterize benign from malignant lesions. Placement and size of the region of interest (ROI) may affect the ADC value. Therefore, the aim of this study was to investigate th...

Background When rectal tumors are examined using magnetic resonance imaging (MRI) the perpendicular angulation of the axial T2-weighted image to the tumor axis is essential for a correct measure of the shortest distance between tumor and mesorectal facia. Purpose The purpose of this study was to determine the interobserver variability in rectal tu...

What should sonographers recommend to patients diagnosed with small gallbladder polyps? Is follow-up always the solution? And for how many years should we encourage patients to participate in a follow-up ultrasound program? This tutorial discusses current research and guidelines.

Objective To investigate the anogenital distance in patients with and without testicular microlithiasis (TML). Methods A total of 101 patients underwent a conventional standard clinical B-mode scrotal ultrasonography and scrotal MRI. The patients were divided into two groups: patients with TML and non-TML. The latter served as control group. The a...

INTRODUCTION Use of an urgent fast-track pathway comprising contrast-enhanced computed tomography (CECT) is a recognised method for diagnostic evaluation of patients with non-specific symptoms. This study focused on a subgroup of patients with non-specific symptoms who are diagnosed outside of fast-track pathways. To investigate the cancer prevalen...

Colorectal cancer is the second most common cancer in Europe, and accurate lymph node staging in rectal cancer patients is essential for the selection of their treatment. MRI lymph node staging is complex, and few studies have been published regarding its reproducibility. This study assesses the inter- and intraobserver variability in lymph node si...

Primary leiomyosarcoma of the colon mesentery is an extremely rare neoplasm, and only a small number of cases have been reported. We describe a case of leiomyosarcoma originating in the colonic mesentery, in a 68-year-old woman. Ultrasound showed a heterogeneous mass with varying vascularization in the left fossa. Central areas of the mass were hyp...

Background: Colon cancer is a common disease in western populations. The aim of this study was to assess the impact of mismatch repair (MMR) deficiency and other patient and tumor characteristics on the accuracy of preoperative staging by comparing histopathological T- and N-categories of the resected specimen with the preoperative clinical stage...

Background: Rectal cancer is a common malignancy. Since the introduction of bowel-screening programs, the number of patients with advanced adenomas and early rectal cancer has increased. Despite improved diagnostics, the discrimination between rectal adenomas and early rectal cancer (i.e., pT1-T2) remains challenging. The purpose of this systemati...

Introduction Radiographers can elect to work within many different modalities, one being ultrasound. Within Europe there are differing opinions about how much of a role radiographers should take in relation to the ultrasound examination, particularly report writing. This paper provides findings exploring the radiographer's views on working within s...

Introduction Variability in non-medical ultrasound practice across Europe has been highlighted in studies. Meanwhile, advanced practice in radiography has undergone rapid development in the United Kingdom (UK). This survey aimed to review results relating to extended role and advanced practice skills, motivation and job satisfaction from a wider su...

Introduction: Ultrasound is one of many areas of specialism for radiographers to develop their skills in. As part of a wider suite of surveys, the European Federation of Radiographer Societies (EFRS) wanted to investigate the extent and scope of practice for radiographers practising ultrasound across Europe. This report details the results of the...

Sarcoidosis is a granulomatous multisystem disease of unknown etiology. Typically, the disease affects the lungs, causing enlargement of the mediastinal lymph nodes, but other organs can be affected. Neurosarcoidosis is reported in 5–10% of the patients. This case represents a 39-year-old male patient diagnosed with lung sarcoidosis. Due to neurolo...

Introduction: Gallbladder polyps often have a benign appearance by ultrasonography. Even so, the current guideline recommends follow-up in gallbladder polyps lesser-than 6 mm. The aim of this study was to investigate long-term follow-up growth of polyps in patients with a polyp size lesser-than 6 mm in a ten-year cohort. Methods: Abdominal ultra...

Background Obesity can be measured by different indices, either as body mass index (BMI) or by more intuitive radiological measurements, and obesity has been shown to have an impact on outcome after colorectal cancer (CRC) surgery. Purpose To investigate whether the thickness of the subcutaneous adipose tissue (SAT) in the abdominal wall can be us...

Introduction: Music interventions have been recognized as a method to reduce pain during medical procedures, but within medical imaging the subject has received little attention. Endorectal ultrasonography examination is in some patients associated with anxiety and pain, and since in Denmark pain relief is usually not administered by the Departmen...

Purpose: The purpose of this study was to evaluate the effect of completeness of the radiological reports in primary local staging colon cancer when using a template. Methods: The study used primary staging reports retrieved from the departments RIS/PACS. Five key tumour descriptors were evaluated within each report: tumour morphology (polypoid...

Colorectal cancer is one of the most common cancers in the developed countries, and colon cancer is well documented. However, it is very rare for a primary colon cancer to exist in a scrotal hernia, and even rarer for the scrotal hernia to perforate. Here, we describe an unusual case where a 75-year-old patient with a colon tumor that perforated in...

Background: Testicular microlithiasis and its clinical significance are not fully understood. Testicular microlithiasis and risk factors have been associated with testicular cancer. The role of testicular microlithiasis is investigated. Purpose: To investigate the association between testicular microlithiasis and socioeconomic and other pre-diag...

Objective: To determine the influence of altered head or tongue posture on the upper airway (UA) volumes using MRI imaging based on a new objective and validated UA evaluation protocol. Setting and sample population: One supine CBCT and five sagittal MRI scans were obtained from ten subjects in different head and tongue positions: (1) supine neu...

Purpose Ultrasonography is a useful tool to measure testicular volume. According to the European Society of Urogenital Radiology, the combination of testicular atrophy and testicular microlithiasis (TML) is a risk factor for testicular cancer. Testicular atrophy is defined as a volume of less than 12 ml. The aim of this study was to compare testicu...

Background: Ultrasound elastography is increasingly available in clinical practice. Recent studies showed higher velocity stiffness in testicular tumors compared to normal testicles. Purpose: To evaluate ultrasound elastography in combination with the apparent diffusion coefficient measurements in diffusion weighted (DW) magnetic resonance imagi...

Objectives To determine the frequency of spermatogenesis in patients with testicular cancer and to assess for any predictors of spermatogenesis. Patients and Methods We retrospectively reviewed 103 testicular germ cell tumours (TGCTs) in men who underwent radical orchidectomy conducted at Guy's Hospital, London, between 2011 and 2015. Primary outc...

Introduction: Testicular cancer is the most common type of cancer in young Caucasian men. It has been suggested that testicular microlithiasis (TML) is a premalignant condition. This study's objective was to investigate TML histology prevalence in testicular cancer patients in two European populations. Methods: We analysed archived histopatholog...

Objective: The aim of this study was to evaluate the incidence of ureteral lesions in retrograde intrarenal surgery (RIRS) with and without the use of a 10/12 Fr ureteral access sheath (UAS). A further objective was to search for preoperative factors that could influence the risk of ureteral damage. Materials and methods: Data were collected from a...

Testicular macrocalcification is an uncommon finding when imaging the scrotum with ultrasonography (US). It is not normally a recognized risk factor for development of testicular malignancy, and patients are not usually offered follow‐up US examinations or counseled for self‐examination. This aspect is in distinction to patients with testicular mic...

Purpose: To correlate ureteral lesions visualized during ureteroscopy with histopathological findings. Materials and methods: Ureteral access sheaths (UAS) sized 13/15 Fr. were inserted bilaterally in 22 laboratory pigs. During retraction of the UAS with a semirigid ureteroscope inside, ureteral lesions were evaluated and registered using the Po...

Objectives To compare elastography measurements in men with normal testicular tissue, testicular microlithiasis and testicular cancer. Methods A total of 248 consecutive patients were included. All men provided written informed consent. Testicular stiffness was assessed using shear wave elastography (SWE). Three SWE velocity measurements were asses...

Background There are limited studies about testicular microlithiasis (TML) and background information such as health, lifestyle, and socioeconomic status. Purpose To assess the prevalence of TML in relation to socioeconomic status and ethnicity. Material and Methods From a database of scrotal ultrasound examinations in a single institution, all m...

To perform a systematic literature study and evaluate whether the occurrence of testicular microlithiasis (alone or in conjunction with other risk factors) is associated with testicular cancer. A systematic literature search was performed or original articles in English on the relation between testicular microlithiasis and potential associated cond...

Testicular microlithiasis is an incidental finding af ultrasonography of the scrotum. A link between testicular microlithiasis and testicular cancer has been suggested. However, the majority of studies are retrospective using ultrasonography with minor data on health status and life style. Objectives was to investigate if lifestyle and health could...

Appendix S1 Information of age distribution and other characteristics of men with and without TML.

Appendix S2 Patient's soft drink and food consumption.

Testicular microlithiasis (TML) is an incidental finding at ultrasonography of the scrotum. A link between testicular microlithiasis and testicular cancer has been suggested. However, the majority of studies are retrospective using ultrasonography with minor data on health status and life style characteristics. Our objective was to investigate if l...