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https://www.readbyqxmd.com/read/28732002/-gastrointestinal-stromal-tumor-in-young-pregnant-woman-case-report
#1
Walker Del Cid Jove Oblitas, Miguel Joseph Abril Barreda
Female patient, 28 years old, with a gestation of 14 weeks, natural and from Ilo-Moquegua. Came with a time of disease 4 days with hematemesis, melena, epigastric pain and syncope. Background of colonic resection for peritonitis due to trauma 20 years ago; upper gastrointestinal bleeding three years ago; paternal grandparents died of gastric cancer; chronic gastritis diagnosed from 19 year old. In laboratory studies hemoglobin of 9.2. In the upper gastrointestinal endoscopy was found absence of active upper gastrointestinal bleeding, a large tumor in proximal body toward greater curvature and posterior wall, 8 cm in diameter approximately, lobed appearance, with most of the mucosal surface unscathed is evidence, areas of ulceration of 2-3 mm covered with fibrin (biopsies taken), hard consistency, tent sign (positive) and cushionsign (negative)...
April 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28728712/diagnostic-imaging-and-newer-modalities-for-thoracic-diseases-pet-computed-tomographic-imaging-and-endobronchial-ultrasound-for-staging-and-its-implication-for-lung-cancer
#2
REVIEW
Sarah J Counts, Anthony W Kim
Modalities to detect and characterize lung cancer are generally divided into those that are invasive [endobronchial ultrasound (EBUS), esophageal ultrasound (EUS), and electromagnetic navigational bronchoscopy (ENMB)] versus noninvasive [chest radiography (CXR), computed tomography (CT), positron emission tomography (PET), and magnetic resonance imaging (MRI)]. This chapter describes these modalities, the literature supporting their use, and delineates what tests to use to best evaluate the patient with lung cancer...
August 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28725645/imaging-bronchopulmonary-dysplasia-a-multimodality-update
#3
REVIEW
Thomas Semple, Mohammed R Akhtar, Catherine M Owens
Bronchopulmonary dysplasia is the most common form of infantile chronic lung disease and results in significant health-care expenditure. The roles of chest radiography and computed tomography (CT) are well documented but numerous recent advances in imaging technology have paved the way for newer imaging techniques including structural pulmonary assessment via lung magnetic resonance imaging (MRI), functional assessment via ventilation, and perfusion MRI and quantitative imaging techniques using both CT and MRI...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28722087/-standardized-diagnosis-and-treatment-of-colorectal-liver-metastasis
#4
Hongwei Yao, Zhongtao Zhang
Colorectal cancer is one of the most common malignancies. The liver is the most common site of distant metastasis, and liver metastasis is the leading cause of death in the patients with colorectal cancer. In recent years, the concept of diagnosis and treatment in colorectal liver metastasis (CLM) and the liver surgery techniques developed rapidly, the standardization of clinical practice elevated obviously, and the survival outcomes of more and more patients were significantly improved. Standardization of diagnosis and treatment in CLM comprised overall assessment of patients' condition and local tumor status based on multidisciplinary team collaboration and then institution of treatment strategy...
July 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28721530/-imaging-representation-of-the-aorta
#5
REVIEW
C Reeps, S Schellong, R T Hoffmann
Depending on the type and acuteness, diseases of the aorta can be imaged by a variety of techniques. Modalities and quality of imaging have developed rapidly in recent years. In combination with the clinical assessment of patients, the results obtained by imaging determine the further management. They not only establish the underlying diagnosis but provide the information essential for indications, planning and reassessment of therapy, as well as for evaluation of the clinical course and surveillance. Whereas conventional catheter-guided angiography and intravascular ultrasound are only used in exceptional cases and then in conjunction with interventional therapy, cross-sectional imaging modalities, such as contrast-enhanced computed tomography (CT) angiography and magnetic resonance imaging (MRI) are nowadays the mainstay of diagnostics...
July 18, 2017: Der Internist
https://www.readbyqxmd.com/read/28721179/early-and-late-onset-complications-of-gynaecologic-surgery-a-multimodality-imaging-approach
#6
REVIEW
I De Blasis, V Vinci, M E Sergi, F Capozza, M Saldari, F Moro, M C Moruzzi, A C Testa, L Manganaro
The role of imaging after surgery is pivotal to drive clinical management of early and/or late onset complications. Most frequently used imaging technique after pelvic surgery is Ultrasound (US), Magnetic Resonance Imaging (MRI) and Computed Tomography (CT). While Ultrasound is a standard procedure, using grey scale and/or colour Doppler evaluation, MRI and CT scan protocols should be derived on the basis of the specific indication of the exam. Correct evaluation of female pelvis after gynaecologic surgery, having in mind the most frequent complications, is based on the correct use of the instruments and on the experience of the examiner, who should be aware of the history of the patient, type of surgery and clinical symptoms for which the exam is required; the clinician should be aware of the possibilities and limits of the different techniques, in order to choose the most appropriate imaging modality and promptly make a correct diagnosis...
March 2017: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/28721103/identifying-features-of-primary-fallopian-tube-carcinoma-using-magnetic-resonance-imaging
#7
Hariyono Winarto, Darrell Fernando
Definitively diagnosing primary fallopian tube carcinoma (PFTC) prior to surgery is difficult. In the first working diagnosis, PFTC is often misdiagnosed as ovarian cancer. Preoperative workups using magnetic resonance imaging (MRI) are capable of differentiating PFTC from epithelial ovarian carcinomas (EOCs). Both the sensitivity and the specificity of MRI for identifying PFTC are high. The presence of a hydrosalpinx is a hallmark of PFTC. On MRI, hydrosalpinges have characteristic sausage-shaped appearances due to intrauterine fluid accumulation and fallopian tube distention...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28715317/itk-snap-an-intractive-medical-image-segmentation-tool-to-meet-the-need-for-expert-guided-segmentation-of-complex-medical-images
#8
Paul A Yushkevich, Guido Gerig
Imaging is a crucial tool in medicine and biomedical research. Magnetic resonance imaging (MRI), computational tomography (CT), proton emission tomography (PET), and ultrasound are routinely used not only to diagnose disease but also to plan and guide surgical interventions, track disease progression, measure the response of the body to treatment, and understand how genetic and environmental factors relate to anatomical and functional phenotypes.
July 2017: IEEE Pulse
https://www.readbyqxmd.com/read/28715042/-diagnostic-significance-of-multiparametric-mri-combined-with-us-fusion-guided-biopsy-of-the-prostate-in-patients-with-increased-psa-levels-and-negative-standard-biopsy-results-to-detect-significant-prostate-cancer-correlation-with-the-gleason-score-korrelation
#9
Manuela Hoffmann, Manuela A Hoffmann, Helmut J Wieler, Frank M Jakobs, Kasra Taymoorian, Arnd Gerhards, Matthias Miederer, Mathias Schreckenberger
AIMS: To increase diagnostic precision and to reduce overtreatment of low-risk malignant disease, multiparametric MRI (mpMRI) combined with ultrasound (US) fusion guided biopsy of the prostate were performed. METHODS: In 99 male patients with increased PSA plasma levels and previous negative standard biopsy procedures, mpMRI was carried out followed by US fusion guided perineal biopsy. PI-RADS-Data (PS) of mpMRI and histopathological Gleason score (GS) were categorized and statistically compared...
July 17, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28707538/adrenal-cortical-hyperplasia-diagnostic-workup-subtypes-imaging-features-and-mimics
#10
Michelle Agrons, Corey T Jensen, Mouhammed Amir Habra, Christine O Menias, Akram M Shaaban, Nicolaus A Wagner-Bartak, Alicia M Roman-Colon, Khaled M Elsayes
Adrenal cortical hyperplasia manifests radiologically as the nonmalignant growth, or enlargement of the adrenal glands, specifically the cortex, although the cortex cannot be definitively identified by conventional imaging. Controlled by the pituitary gland, the adrenal cortex drives critical processes, such as cortisol, mineralocorticoid, and sex hormone production. Any disruption in the multiple enzymes and hormones involved in these pathways may cause serious or life-threatening symptoms, often associated with anatomical changes of the adrenal glands...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28707187/imaging-in-vascular-access
#11
Eoin A Murphy, Rose A Ross, Robert G Jones, Stephen J Gandy, Nicolas Aristokleous, Marco Salsano, Jonathan R Weir-McCall, Shona Matthew, John Graeme Houston
This review examines four imaging modalities; ultrasound (US), digital subtraction angiography (DSA), magnetic resonance imaging (MRI) and computed tomography (CT), that have common or potential applications in vascular access (VA). The four modalities are reviewed under their primary uses, techniques, advantages and disadvantages, and future directions that are specific to VA. Currently, US is the most commonly used modality in VA because it is cheaper (relative to other modalities), accessible, non-ionising, and does not require the use of contrast agents...
July 13, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28698753/comparison-of-diagnostic-value-of-sonourethrography-with-retrograde-urethrography-in-diagnosis-of-anterior-urethral-stricture
#12
Reza Shahsavari, Seyed Morteza Bagheri, Hamed Iraji
BACKGROUND: In spite of the advanced imaging methods, MRI and CT-Scan, the role of ultrasonography is still unique in some fields of genitourinary tract diseases. AIM: This study was aimed at assessing this role in the evaluation of male urinary stricture, and comparison with standard retrograde urethrography (SUG). METHODS: This was a cross-sectional study. The patients include those who were suspected of anterior urethral stricture and were introduced assessed with imaging techniques (RUG)...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28692971/constrained-deep-weak-supervision-for-histopathology-image-segmentation
#13
Zhipeng Jia, Xingyi Huang, Eric I-Chao Chang, Yan Xu
In this paper, we develop a new weakly-supervised learning algorithm to learn to segment cancerous regions in histopathology images. Our work is under a multiple instance learning framework (MIL) with a new formulation, deep weak supervision (DWS); we also propose an effective way to introduce constraints to our neural networks to assist the learning process. The contributions of our algorithm are threefold: (1) We build an end-to-end learning system that segments cancerous regions with fully convolutional networks (FCN) in which image-toimage weakly-supervised learning is performed...
July 7, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28692493/the-application-of-technetium-99m-red-blood-cell-scintigraphy-in-the-diagnosis-of-orbital-cavernous-hemangioma
#14
Hua Dong, Zuncheng Zhang, Yongtao Guo, Hong Zhang, Wengui Xu
OBJECTIVE: The purpose of this study was to evaluate the clinical value of technetium-99m-red blood cell (Tc-RBC) scintigraphy in the diagnosis of orbital cavernous hemangioma (OCH). PATIENTS AND METHODS: Forty-one patients with pathologically confirmed orbital mass, of which 10 were OCH, underwent Tc-RBC scintigraphy in this study. The scanning procedure included an initial perfusion phase, followed by an early and a delayed blood pool phase. All patients underwent ultrasonography and computed tomography (CT), and 15 patients also underwent MRI...
July 7, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28686656/avoiding-fears-and-promoting-shared-decision-making-how-should-physicians-inform-patients-about-radiation-exposure-from-imaging-tests
#15
Blanca Lumbreras, José Vilar, Isabel González-Álvarez, Mercedes Guilabert, María Pastor-Valero, Lucy Anne Parker, Jorge Vilar-Palop, Ildefonso Hernández-Aguado
OBJECTIVE: We aimed to evaluate the population's awareness about the radiation exposure associated with five specific imaging tests, and their preference regarding three different formats for receiving the information before undergoing an imaging test. METHODS: A quantitative and qualitative evaluation through a survey and focal groups including general population from two health departments in Spain. The sampling was carried out in stages (according to health department size) and stratified by age and sex, to get a representative sample...
2017: PloS One
https://www.readbyqxmd.com/read/28684867/combined-magnetomotive-ultrasound-pet-ct-and-mr-imaging-of-68-ga-labelled-superparamagnetic-iron-oxide-nanoparticles-in-rat-sentinel-lymph-nodes-in-vivo
#16
Maria Evertsson, Pontus Kjellman, Magnus Cinthio, Roger Andersson, Thuy A Tran, Rene In't Zandt, Gustav Grafström, Hanna Toftevall, Sarah Fredriksson, Christian Ingvar, Sven-Erik Strand, Tomas Jansson
Current methods for intra-surgical guidance to localize metastases at cancer surgery are based on radioactive tracers that cause logistical challenges. We propose the use of a novel ultrasound-based method, magnetomotive ultrasound (MMUS) imaging that employ a nanoparticle-based contrast agent that also may be used for pre-operative PET/MRI imaging. Since MMUS is radiation free, this eliminates the dependence between pre- and intra-operative imaging and the radiation exposure for the surgical staff. This study investigates a hypothetical clinical scenario of pre-operative PET imaging, combined with intra-operative MMUS imaging, implemented in a sentinel lymph node (SLN) rat model...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28683511/-extracranial-schwannomas-of-the-head-and-neck-clinical-approach-based-on-20-cases
#17
Benedikt Höing, Boris A Stuck, Benjamin Kansy, Timon Hussain, Anke Schlüter, Laura Holtmann, Adrian Ringelstein, Stefan Mattheis, Stephan Lang, Nina Dominas
Background Schwannomas are rare benign tumors originating from the perineural cells forming the myelin layer in the peripheral nervous system (PNS). While well established therapeutic concepts exist for intracranial schwannomas, there is a lack of consistent clinical standards for extracranial schwannomas. Method This retrospective study describes the clinical pathway of 20 patients with histologically proven extracranial schwannomas of the head and neck. The diagnostic and therapeutic strategies for schwannomas are discussed with special emphasis on localization and functional outcome...
July 6, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28681070/-imaging-of-visceral-vessels
#18
REVIEW
C Stelzner, N Abolmaali, U Hecker, S Schellong
Visceral vessel processes are primarily or secondarily included in a multitude of clinical abdominal symptoms, with which the specialist in internal medicine is confronted. The spectrum ranges from more sharply outlined manifestations, such as chronic ischemic bowel disease up to dysfunctional disturbances of blood pressure regulation, such as high-grade renal artery stenosis. Sometimes diseases with prognostic implications, such as arterial aneurysms, are revealed as incidental findings. As a rule the B‑mode and duplex ultrasound can often be complemented by computed tomography (CT) and magnetic resonance imaging (MRI), as in aneurysms or portal vein thrombosis or the indications for subsequent digital subtraction angiography (DSA) and catheter-based therapy can be directly obtained from duplex and Doppler ultrasound...
July 5, 2017: Der Internist
https://www.readbyqxmd.com/read/28674910/diagnostic-imaging-in-pediatric-thoracic-trauma
#19
Claudia Lucia Piccolo, Stefania Ianniello, Margherita Trinci, Michele Galluzzo, Michele Tonerini, Massimo Zeccolini, Giuseppe Guglielmi, Vittorio Miele
Thoracic trauma accounts for approximately 14% of blunt force traumatic deaths, second only to head injuries. Chest trauma can be blunt (90% of cases) or penetrating. In young patients, between 60 and 80% of chest injuries result from blunt trauma, with over half as a consequence of impact with motor vehicles, whereas in adolescents and adults, penetrating trauma has a statistically more prominent role. Pulmonary contusions and rib fractures are the most frequent injuries occurring. Chest X-ray is the first imaging modality of choice to identify patients presenting with life-threatening conditions (i...
July 4, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28659546/focused-ultrasound-treatment-present-and-future
#20
Keiichi Abe, Takaomi Taira
The discovery that ultrasound waves could be focused inside the skull and heated to high temperatures at a focal point goes back to 1944. However, because the skull causes the ultrasound waves to attenuate and scatter, it was believed that application of this technology would be difficult, and that it would be impossible to use this approach in the surgical treatment of intracranial diseases. Eventually, magnetic resonance image guided focused ultrasound (MRgFUS) surgery began being used to treat uterine fibroids, breast cancer and bone metastasis and locally confined prostate cancer...
June 28, 2017: Neurologia Medico-chirurgica
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