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Radiology value

Maxim Avanesov, Nis Jesper Wiese, Murat Karul, Helena Guerreiro, Sarah Keller, Philip Busch, Frank Jacobsen, Gerhard Adam, Jin Yamamura
OBJECTIVES: To develop a routinely applicable severity index for the management of acute appendicitis in adults using combined clinical and radiological parameters and retroperitoneal space planes (RSP). METHODS: Two hundred consecutive patients with histologically proven acute appendicitis and available presurgical CT scans were analysed retrospectively. Two radiologists assessed all CT scans for morphologic sings of appendicitis and six RSP. Clinical parameters were age, body temperature, C-reactive protein (CRP), white blood cell count, and duration of symptoms...
March 14, 2018: European Radiology
Stefanie Bette, Melanie Barz, Thomas Huber, Christoph Straube, Friederike Schmidt-Graf, Stephanie E Combs, Claire Delbridge, Julia Gerhardt, Claus Zimmer, Bernhard Meyer, Jan S Kirschke, Tobias Boeckh-Behrens, Benedikt Wiestler, Jens Gempt
Recent studies suggested that postoperative hypoxia might trigger invasive tumor growth, resulting in diffuse/multifocal recurrence patterns. Aim of this study was to analyze distinct recurrence patterns and their association to postoperative infarct volume and outcome. 526 consecutive glioblastoma patients were analyzed, of which 129 met our inclusion criteria: initial tumor diagnosis, surgery, postoperative diffusion-weighted imaging and tumor recurrence during follow-up. Distinct patterns of contrast-enhancement at initial diagnosis and at first tumor recurrence (multifocal growth/progression, contact to dura/ventricle, ependymal spread, local/distant recurrence) were recorded by two blinded neuroradiologists...
March 14, 2018: Scientific Reports
Bibb Allen, Mythreyi Chatfield, Judy Burleson, William T Thorwarth
In September of 2014, the American College of Radiology joined a number of other organizations in sponsoring the 2015 National Academy of Medicine report, Improving Diagnosis In Health Care. Our presentation to the Academy emphasized that although diagnostic errors in imaging are commonly considered to result only from failures in disease detection or misinterpretation of a perceived abnormality, most errors in diagnosis result from failures in information gathering, aggregation, dissemination and ultimately integration of that information into our patients' clinical problems...
September 26, 2017: Diagnosis
Cécile J Ravesloot, Anouk van der Gijp, Marieke F van der Schaaf, Josephine C B M Huige, Olle Ten Cate, Koen L Vincken, Christian P Mol, Jan P J van Schaik
BACKGROUND: Misinterpretation of medical images is an important source of diagnostic error. Errors can occur in different phases of the diagnostic process. Insight in the error types made by learners is crucial for training and giving effective feedback. Most diagnostic skill tests however penalize diagnostic mistakes without an eye for the diagnostic process and the type of error. A radiology test with stepwise reasoning questions was used to distinguish error types in the visual diagnostic process...
June 27, 2017: Diagnosis
Pei-An Hu, Zheng-Rong Zhou
PURPOSES: Kaposiform hemangioendothelioma (KHE) is a unique locally aggressive vascular tumor with poor prognosis. The aim of this study is to assess the clinical and imaging features of KHE, and to compare the differences between solitary and diffusive infiltrative subtype further. METHODS: The clinical and radiological findings of a cohort of 25 cases with histologically proven KHE, between June 2011 and June 2016, were reviewed retrospectively. Seven solitary and 18 diffusive infiltrative subtypes KHE were included...
March 14, 2018: British Journal of Radiology
Hiroshige Fujishiro, Masato Okuda, Kunihiro Iwamoto, Seiko Miyata, Youta Torii, Shuji Iritani, Norio Ozaki
AIMS: REM sleep behavior disorder (RBD) and psychiatric symptoms often antedate the clinical diagnosis of Parkinson's disease / dementia with Lewy bodies. The purpose of this study is to investigate RBD and its relevance to Lewy body disease (LBD) in patients with late-onset psychiatric disorders. METHODS: Study subjects included 19 patients with late-onset psychiatric disorders who exhibited REM sleep without atonia (RWA), which is a hallmark of RBD on polysomnography, at our psychiatric ward...
March 14, 2018: Psychiatry and Clinical Neurosciences
Daniel Koh, Kenneth K Lau, Evonne Teoh
PURPOSE: To investigate if the presence of systemic inflammatory response syndrome (SIRS) in patients with urinary tract obstruction at time of presentation to the emergency department correlates with a subsequent positive urine culture and to determine if it could be used as a tool to predict the urgency of a percutaneous nephrostomy (PCN). The secondary aim of the study was to assess the incidence of in-hour and after-hour emergent PCNs performed in a tertiary center which has both interventional radiological and urological expertise...
March 13, 2018: Emergency Radiology
Hiroaki Kuroda, Shnsuke Mori, Hirotaka Tanaka, Tatsuya Yoshida, Tetsuya Mizuno, Noriaki Sakakura, Yasushi Yatabe, Hiroshi Iwata, Yukinori Sakao
Background: We previously proposed measuring tumor size using mediastinal window setting on high-resolution computed tomography (CT) as a simple and useful modality for preoperative prognostication of small adenocarcinoma. Hence, the importance of tumor volume and positron emission tomography (PET) for preoperative prognostication of clinical stage IA (cIA) adenocarcinoma was studied. Materials and Methods: We retrospectively evaluated total 324 patients who underwent pulmonary resection of cIA adenocarcinoma between July 2008 and August 2015...
February 13, 2018: Oncotarget
Christian Kirschneck, Peter Proff
In dentistry, methods for determining age and the degree of dental and skeletal development play an important role, in particular in the assessment of developmental disorders of the dentition as well as in the planning of orthodontic interventions. Dentistry is also important in the field of forensics due to the possibility of age determination based on the dentition. In addition to anthropometric and morphologic methods, numerous biochemical, histologic, radiologic, and radiation-free imaging methods exist to determine the chronologic, but also dental and skeletal age of a person or a patient...
2018: Quintessence International
Jacek Staszewski, Renata Piusińska-Macoch, Ewa Skrobowska, Bogdan Brodacki, Katarzyna Macek, Adam Stępień
BACKGROUND: The clinical significance of aspirin resistance (AR) in patients with symptomatic cerebrovascular disease is not well known. The aim of this single-center, prospective study was to examine the prevalence, risk factors and prognostic significance of AR in patients with different clinical manifestations of cerebral small vessel disease (CSVD) over 24-month follow-up. METHODS: We studied 104 patients with MRI confirmed CSVD, including those with recent lacunar stroke (LS, n=49), vascular parkinsonism (VaP, n=16) and dementia (VaD, n=39)...
January 2018: Annals of Clinical and Laboratory Science
Ibrahim H Saleh, Aly A Abdel-Halim
Beryllium-7 is a radionuclide produced in the upper atmosphere by cosmic-ray spallation with ions of carbon, oxygen and nitrogen. It is one of radionuclides that can be used to trace the fine particulate matter of 2.5-µm diameter (PM2.5 ) and smaller. In this work,7 Be was determined in leaves of 10 plant species collected from streets, parks and open land and in 5 consecutive rains over Alexandria, Egypt.7 Be levels were also measured in soil covered by each type of plant as well as in the nearest uncovered soil to be reference values to determine its intercepted amount and consequently PM2...
March 12, 2018: Isotopes in Environmental and Health Studies
Fahed Zairi, Camille Troux, Tarek Sunna, Mélodie-Anne Karnoub, Ghassan Boubez, Daniel Shedid
OBJECTIVES: The surgical management of dumbbell tumors of the lumbar spine remains controversial, because of their large volume and complex location, involving both the spinal canal and the retro peritoneum. While sporadically reported, our study aims to confirm the value of minimally invasive posterior access for the complete resection of large lumbar dumbbell tumors. PATIENTS AND METHODS: In this prospective study, we included all consecutive patients who underwent the resection of a voluminous dumbbell tumor at the lumbar spine through a minimally invasive approach, between March 2015 and August 2017...
March 5, 2018: Clinical Neurology and Neurosurgery
Derek T Cawley, Daniel Larrieu, Takashi Fujishiro, David Kieser, Louis Bossiere, Emre Acaroglu, Ahmet Alanay, Frank Kleinsteück, Ferran Pellisé, Francisco Sánchez Pérez-Grueso, Jean-Marc Vital, Olivier Gille, Ibrahim Obeid
STUDY DESIGN: Multicenter, prospective study of consecutive adult spinal deformity (ASD) patients. OBJECTIVE: To evaluate back and leg pain as a combined score in ASD and compare their relative and cumulative correlations with HRQOL and sagittal parameters. SUMMARY OF BACKGROUND DATA: Pain and disability are commonly reported in patients with ASD. This can affect their back, their legs or both. ASD-associated pain has been correlated with numerous health-related quality of life (HRQOL) scores and radiological parameters...
March 9, 2018: Spine
Jason N Itri, Sohil H Patel
OBJECTIVE: The field of cognitive science has provided important insights into mental processes underlying the interpretation of imaging examinations. Despite these insights, diagnostic error remains a major obstacle in the goal to improve quality in radiology. In this article, we describe several types of cognitive bias that lead to diagnostic errors in imaging and discuss approaches to mitigate cognitive biases and diagnostic error. CONCLUSION: Radiologists rely on heuristic principles to reduce complex tasks of assessing probabilities and predicting values into simpler judgmental operations...
March 12, 2018: AJR. American Journal of Roentgenology
Gaye Ulubay, Ebru Ayvazoglu Soy, Irem Serifoglu, Fisun Sozen, Gokhan Moray, Mehmet Haberal
OBJECTIVES: Despite improved success with solid-organ transplant procedures, recipients remain at risk for infections, including pneumonia, due to their immunosuppressive regimens. In solid-organ transplant patients, clinical findings of pneumonia can be nonspecific, and diagnosis of pneumonia may be difficult as several conditions (drug lung, hypervolemia, infections, hemorrhage) can led to pulmonary infiltrates, mimicking pneumonia in these patients. The role of mean platelet volume, a predictor of inflammatory disease, with elevated values inversely correlated with inflammatory problems, in the diagnosis of pneumonia has not yet been investigated in solid-organ transplant patients...
March 2018: Experimental and Clinical Transplantation
Byoung Hun Lee, Seung-Jae Hyun, Ki-Jeong Kim, Tae-Ahn Jahng, Yongjung J Kim, Hyun-Jib Kim
OBJECTIVE: The aim of this study was to investigate clinical and radiological outcomes of patients who underwent posterior vertebral column resection (PVCR) by a single neurosurgeon in a single institution. METHODS: Thirty-four consecutive patients with severe spinal deformities who underwent PVCR between 2010 and 2016 were enrolled. The radiographic measurements included a kyphotic angle of PVCR levels (VCR angle), sagittal vertical axis (SVA), thoracic kyphosis, lumbar lordosis (LL), and spinopelvic parameters...
March 2018: Journal of Korean Neurosurgical Society
Yu-Mee Sohn, Mirinae Seo
PURPOSE: To compare breast stiffness based on shear-wave elastography (SWE) quantitative parameters with histopathologic results diagnosed by ultrasound (US)-guided core needle biopsy (CNB) to determine their association with upgrade rates after surgical excision or follow-up US as well as clinico-radiologic differences between upgrade and non-upgrade groups. MATERIALS AND METHODS: This retrospective study enrolled 225 breast lesions from 225 patients, including 159 benign lesions, 38 high risk lesions and 28 ductal carcinoma in situ (DCIS) diagnosed by US-guided CNB...
March 3, 2018: Clinical Imaging
Maria D Falco, Salvatore Masala, Matteo Stefanini, Paolo Bagalà, Daniele Morosetti, Eros Calabria, Alessia Tonnetti, Gianluca Verona-Rinati
Interventional radiology is based on minimally invasive procedures that allow diagnosis and percutaneous treatment of diseases in almost all organ systems. Such procedures have many benefits, but they also contribute significantly to collective radiation dose. In this regard, effective dose (E) is a convenient quantity to estimate patients' stochastic radiation risk. However, E cannot be accurately evaluated immediately. In the present study, we aimed to estimate the E value in 15 selected interventional procedures...
March 8, 2018: Radiological Physics and Technology
M L Sunde, A Negård, T Øresland, N Bakka, J T Geitung, A E Færden
PURPOSE: Variability in functional outcome after ileal pouch-anal anastomosis (IPAA) is to a large extent unexplained. The aim of this study was to use MRI to evaluate the morphology, emptying pattern and other pathology that may explain differences in functional outcome between well-functioning and poorly functioning pouch patients. A secondary aim was to establish a reference of normal MRI findings in pelvic pouch patients. METHODS: From a previous study, the best and worst functioning patients undergoing IPAA surgery between 2000 and 2013 had been identified and examined with manovolumetric tests (N = 47)...
March 9, 2018: International Journal of Colorectal Disease
I I Suliman, Aziza H Abdelgadir
Radiation doses were measured for the first time in intraoral and panoramic dental radiology at Sudanese hospitals. Doses were determined using various exposure settings for adults and children in 8 intraoral and 6 panoramic X-ray devices. The study sample was equally divided between devices using a digital image receptor (DR) and those using conventional screen film (SF). Radiation doses are reported in terms of incident air kerma (IAK) (intraoral radiology) and kerma area product (PKA ) (panoramic radiology)...
February 2018: Physica Medica: PM
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