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Radiology imaging

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https://www.readbyqxmd.com/read/28432515/mri-predicts-pathologic-complete-response-in-her2-positive-breast-cancer-after-neoadjuvant-chemotherapy
#1
Mette S van Ramshorst, Claudette E Loo, Emilie J Groen, Gonneke H Winter-Warnars, Jelle Wesseling, Frederieke van Duijnhoven, Marie-Jeanne T Vrancken Peeters, Gabe S Sonke
BACKGROUND: Neoadjuvant treatment of HER2-positive breast cancer frequently leads to a pathologic complete response (pCR), which is associated with favourable long-term outcome. Treatment regimens typically consist of 6-9 cycles of trastuzumab-based chemotherapy, although many patients achieve early radiologic complete response (rCR). If rCR accurately predicts pCR, the number of chemotherapy cycles can possibly be reduced. METHODS: We performed a diagnostic accuracy study to determine the association between rCR and pCR in patients with stage II-III HER2-positive breast cancer treated with neoadjuvant trastuzumab-based chemotherapy at the Netherlands Cancer Institute...
April 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28432469/renal-findings-in-patients-with-mulibrey-nanism
#2
Johanna Sivunen, Susann Karlberg, Jouko Lohi, Niklas Karlberg, Marita Lipsanen-Nyman, Hannu Jalanko
BACKGROUND: Mulibrey nanism (MUL) is a rare inherited disease caused by genetic defects affecting peroxisomal TRIM37 protein. MUL affects multiple organs, leading to growth retardation and early onset type 2 diabetes. We aimed to characterize the structure and function of kidneys and the urinary tract in a large cohort of Finnish MUL patients. METHODS: Ultrasound, magnetic resonance imaging (MRI), and autopsy findings of the kidneys and urinary tract from 101 MUL patients were retrospectively analyzed...
April 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28432435/c4-5-foraminal-stenosis-predicts-c5-palsy-after-expansive-open-door-laminoplasty
#3
Ho-Jin Lee, Jae-Sung Ahn, Byungkon Shin, Hoseok Lee
INTRODUCTION: Laminoplasty is frequently performed in cervical myelopathy patients, but can lead to unexpected postoperative C5 palsy. Although several studies have examined the pathogenesis and prevention of postoperative C5 palsy, many controversies remain and some radiological findings identified as risk factors were not correlated with our outcomes. PURPOSE: This study sought reliable radiological findings that predict C5 palsy after laminoplasty and examined why the predictors of C5 palsy did not apply in our series...
April 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28432270/discriminating-between-virilizing-ovary-tumors-and-ovary-hyperthecosis-in-postmenopausal-women-clinical-data-hormonal-profiles-and-image-studies
#4
Viviane Dos Reis Vieira Yance, José Antonio Miguel Marcondes, Michelle Patrocíneo Rocha, Cristiano Roberto Grimaldi Barcellos, Wagner Silva Dantas, Ana Flavia Assis Avila, Ronaldo Hueb Baroni, Filomena Marino Carvalho, Sylvia Asaka Yamashita Hayashida, Berenice Bilharinho Mendonça, Sorahia Domenice
The presence of virilizing signs associated with high serum androgen levels in postmenopausal women is rare. Virilizing ovarian tumors (VOTs) and ovarian stromal hyperthecosis (OH) are the most common etiologies in virilized postmenopausal women. The differential diagnosis between these two conditions is often difficult. OBJECTIVE: To evaluate the contribution of clinical features, hormonal profiles and radiological studies to the differential diagnosis of VOT and OH. DESIGN: A retrospective study...
April 21, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28431711/nodular-fasciitis-of-the-posterior-chest-wall-with-bone%C3%A2-invasion-mimicking-a-malignant-neoplasm
#5
Nicholas J Olson, David J Finley, Michael J Tsapakos, Sandra L Wong, Konstantinos Linos
Nodular fasciitis is a self-limiting benign fibroblastic/myofibroblastic proliferation, which typically presents as a rapidly growing mass resembling an aggressive lesion clinically. It can also mimic a sarcoma histologically, hence the frequent characterization as "pseudosarcoma." We describe a case of a 53-year-old man who presented with a posterior chest wall mass that on imaging showed erosion into the adjacent ribs. After resection, the diagnosis of nodular fasciitis was rendered. Bone erosion by nodular fasciitis is extremely rare and can resemble a malignant neoplasm radiologically...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28431589/t2-relaxometry-helps-prognosticate-seizure-outcome-in-patients-with-solitary-cerebral-cysticercosis
#6
Aaron de Souza, Atchayaram Nalini, Jitender Saini, Kandavel Thennarasu
OBJECTIVE: Correlate serial T2 relaxometry (T2R) values with long term seizure outcome in patients with solitary cerebral cysticercosis (SCC) in order to establish its usefulness as a prognostic marker in these patients. METHODS: Patients with new-onset seizures due to SCC were imaged serially using a pre-determined MRI protocol at enrolment and after 3, 6, 12 and 24months. T2 relaxometry was performed using a dual echo sequence with maps generated manually from the measured image intensities at the level of the lesion...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431197/serum-c-reactive-protein-procalcitonin-and-lactate-dehydrogenase-for-the-diagnosis-of-pancreatic-necrosis
#7
REVIEW
Oluyemi Komolafe, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: The treatment of people with pancreatic necrosis differs from that of people with oedematous pancreatitis. It is important to know the diagnostic accuracy of serum C-reactive protein (CRP), serum procalcitonin, and serum lactate dehydrogenase (LDH) as a triage test for the detection of pancreatic necrosis in people with acute pancreatitis, so that an informed decision can be made as to whether the person with pancreatic necrosis needs further investigations such as computed tomography (CT) scan or magnetic resonance imaging (MRI) scan and treatment for pancreatic necrosis started...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28430713/a-national-survey-of-neonatologists-barriers-and-prerequisites-to-introduce-point-of-care-ultrasound-in-neonatal-icus
#8
Hussnain S Mirza, Gregory Logsdon, Anoop Pulickal, Mark Stephens, Rajan Wadhawan
Point-of-care (POC) ultrasound refers to the use of portable imaging. Although POC ultrasound is widely available to the neonatologists in Australia and Europe, neonatologists in the United States report limited availability. Our objective was to seek the US neonatologists' perception of barriers and prerequisites in adopting POC ultrasound in neonatal intensive care units. An online survey link was sent via e-mail to 3000 neonatologists included in the database maintained by the American Academy of Pediatrics...
April 20, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28430541/a-comprehensive-approach-to-hepatic-vascular-disease
#9
Khaled M Elsayes, Akram M Shaaban, Sarah M Rothan, Sanaz Javadi, Beatrice L Madrazo, Rosa P Castillo, Victor J Casillas, Christine O Menias
The liver has a complex vascular supply, which involves the inflow of oxygenated blood through the hepatic artery (systemic circulation) and deoxygenated blood through the portal vein (portal circulation), as well as the outflow of deoxygenated blood through the hepatic veins to the inferior vena cava. A spectrum of vascular variants can involve the liver. Some of these variants may result in areas of enhancement that can mimic more serious pathologic conditions. In this article, the authors discuss a spectrum of variants and pathologic conditions that may involve the liver vasculature...
April 21, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28430293/three-cases-of-ectopic-sphenoid-sinus-pituitary-adenoma
#10
Ernest Jan Bobeff, Karol Wiśniewski, Wielisław Papierz, Ludomir Stefańczyk, Dariusz Jan Jaskólski
<i><b>Introduction</b>: Ectopic sphenoid sinus pituitary adenoma is a rare tumour originating from embryologic remnants of Rathke's pouch. Although it is considered a clinically benign neoplasm, necrosis is encountered in 25% of cases and it can invade adjacent bone structures. <b>Aims</b>: To establish clinical, radiological and histopathological features of ectopic sphenoid sinus pituitary adenoma. <b>Material and methods: </b> Analysis of three cases: two females and one man, aged 61-70...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28429878/a-systematic-review-of-ultrasound-imaging-as-a-tool-for-evaluating-haemophilic-arthropathy-in-children-and-adults
#11
REVIEW
C C Ligocki, A Abadeh, K C Wang, T Adams-Webber, V S Blanchette, A S Doria
The purpose of this study was to semi-quantitatively assess the evidence on the value of ultrasound (US) for assessment of haemophilic arthropathy (HA) in children and adults based on the following questions: (1) Does early diagnosis of pathological findings, using available US techniques, impact the functional status of the joint? (2) Do current available US techniques have the ability to accurately detect pathological changes in target joints in haemophilic patients? (3) Does treatment (prophylaxis) improve US evidence of haemophilic arthropathy in children and adults? (4) Is there any association between various US scoring systems and other clinical/radiological constructs? Of the 6880 citations identified searching databases such as MEDLINE, Embase, CENTRAL and Web of Science, 20 articles investigating either the diagnostic accuracy of US and/or US scanning protocols and scoring systems for assessment of HA met the inclusion criteria for the study...
April 21, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28429477/the-emerging-role-of-maxillofacial-radiology-in-the-diagnosis-and-management-of-patients-with-complex-periodontitis
#12
REVIEW
William C Scarfe, Bruno Azevedo, Lucas R Pinheiro, Menik Priaminiarti, Marcelo A O Sales
Contemporary periodontal therapy has evolved to become more interdisciplinary and increasingly involves more complex treatments, including bone and soft-tissue regenerative procedures. Therapeutic options require an imaging modality or combination of techniques that are capable of providing a diagnostic osseous baseline and facilitating quantification of smaller increments of bony change, both loss and additive, which are comparable over time. Intra-oral and panoramic radiography are the modalities most commonly used to identify the location, quantify the amount and the pattern of alveolar bone loss and determine response to therapy...
June 2017: Periodontology 2000
https://www.readbyqxmd.com/read/28429207/organizational-and-welfare-mode-of-breast-centers-network-a-survey-of-sicilian-radiologists
#13
Maria Adele Marino, Orazio Pennisi, Annalisa Donia, Carmelo Sofia, Claudio Guerra, Carmelo Privitera, Placido Romeo
The European Society of Breast Cancer Specialists has created quality indicators for breast units to establish the minimum standards of care for patients. In Italy, each region differs, indeed, in terms of health care and services warranted to patients suffering from breast cancer. Since Sicilian Regional Administration today is still disregarding implementation of the provisions contained in the proposal of the Ministry of Health entitled "Guidelines on Organizational and Health Care Methods of Breast Centers Network" in November 2015 the Sicilian Regional Group of the Italian Society of Radiology (SIRM) decided to carry out a survey to see the position of the Sicilian Healthcare System and define the gap to bridge over...
April 20, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28429202/small-bowel-motility
#14
REVIEW
Carolina Malagelada, Juan R Malagelada
PURPOSE OF REVIEW: Small bowel motility disorders constitute a relatively small but important segment of clinical gastroenterology. Presenting features encompass a broad range of symptom manifestations and severity: from chronic functional-type complaints to life-threatening nutritional impairment. Diagnostic assessment of patients with suspected intestinal motility disorders is often hampered by the complexity of measuring intestinal contractile activity in humans. In this review, we describe and critically comment the main current and forthcoming methodologies...
June 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/28428888/multimodal-imaging-findings-in-an-adult-case-of-swyer-james-macleod-syndrome
#15
Hitoshi Kawasuji, Kensuke Suzuki, Hideaki Furuse, Takeshi Tsuda, Yasuaki Masaki, Hirokazu Taniguchi
Swyer-James-MacLeod syndrome (SJMS) is an uncommon obliterative lung disease that is radiologically characterized by hyperlucency of a part of or the entire lung. A 33-year-old man presented to our hospital for chest tightness. A chest X-ray revealed unilateral hyperlucency of left lower lung, and contrast-enhanced computed tomography (CT) of the chest disclosed a hyperlucent left lung without vascularity. Three-dimensional CT reconstruction and ventilation-perfusion scan findings were concordant with SJMS...
July 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28428678/productive-cough-in-children-and-adolescents-view-from-primary-health-care-system
#16
REVIEW
Edin Begic, Zijo Begic, Amra Dobraca, Edo Hasanbegovic
Cough is one of the most common symptoms that doctor faces in working with pediatric population, and according to some characteristics of cough, doctors can often conclude localization, and sometimes even the nature of the disease that causes it. Cough is not only the physiological defense reaction, but a symptom of a disease. According to duration it can be acute, chronic and recidivist, recurrent and persistent, strong or discreet, caused by changes in body position and changes in outside temperature. Pathoanatomically it is divided into lobar, lobular, alveolar and interstitial, pathogenetically to bronchogenic and hematogenous, as well as in immuno competent and immunocompromised, and clinically on the local and inpatient (72 hours after hospital admission)...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28428651/utility-of-the-inspiratory-phase-in-high-resolution-computed-tomography-evaluations-of-pediatric-patients-with-bronchiolitis-obliterans-after-allogeneic-bone-marrow-transplant-reducing-patient-radiation-exposure
#17
Paulo Henrique Togni Filho, João Luiz Marin Casagrande, Henrique Manoel Lederman
OBJECTIVE: To evaluate the utility of the inspiratory phase in high-resolution computed tomography (HRCT) of the chest for the diagnosis of post-bone marrow transplantation bronchiolitis obliterans. MATERIALS AND METHODS: This was a retrospective, observational, cross-sectional study. We selected patients of either gender who underwent bone marrow transplantation and chest HRCT between March 1, 2002 and December 12, 2014. Ages ranged from 3 months to 20.7 years...
March 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28428472/examination-of-a-method-to-determine-the-reference-region-for-calculating-the-specific-binding-ratio-in-dopamine-transporter-imaging
#18
Ayumi Watanabe, Yusuke Inoue, Yuji Asano, Kei Kikuchi, Hiroki Miyatake, Takanobu Tokushige
The specific binding ratio (SBR) was first reported by Tossici-Bolt et al. for quantitative indicators for dopamine transporter (DAT) imaging. It is defined as the ratio of the specific binding concentration of the striatum to the non-specific binding concentration of the whole brain other than the striatum. The non-specific binding concentration is calculated based on the region of interest (ROI), which is set 20 mm inside the outer contour, defined by a threshold technique. Tossici-Bolt et al. used a 50% threshold, but sometimes we couldn't define the ROI of non-specific binding concentration (reference region) and calculate SBR appropriately with a 50% threshold...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28428140/automated-annotation-and-classification-of-bi-rads-assessment-from-radiology-reports
#19
Sergio M Castro, Eugene Tseytlin, Olga Medvedeva, Kevin Mitchell, Shyam Visweswaran, Tanja Bekhuis, Rebecca S Jacobson
The Breast Imaging Reporting and Data System (BI-RADS) was developed to reduce variation in the descriptions of findings. Manual analysis of breast radiology report data is challenging but is necessary for clinical and healthcare quality assurance activities. The objective of this study is to develop a natural language processing (NLP) system for automated BI-RADS categories extraction from breast radiology reports. We evaluated an existing rule-based NLP algorithm, and then we developed and evaluated our own method using a supervised machine learning approach...
April 17, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28428032/does-semi-automatic-bone-fragment-segmentation-improve-the-reproducibility-of-the-letournel-acetabular-fracture-classification
#20
M Boudissa, B Orfeuvre, M Chabanas, J Tonetti
BACKGROUND: The Letournel classification of acetabular fracture shows poor reproducibility in inexperienced observers, despite the introduction of 3D imaging. We therefore developed a method of semi-automatic segmentation based on CT data. The present prospective study aimed to assess: 1) whether semi-automatic bone-fragment segmentation increased the rate of correct classification; 2) if so, in which fracture types; and 3) feasibility using the open-source itksnap 3.0 software package without incurring extra cost for users...
April 17, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
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