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Diagnostic imaging

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https://www.readbyqxmd.com/read/28821205/cerebrospinal-fluid-circulating-tumor-cells-a-novel-tool-to-diagnose-leptomeningeal-metastases-from-epithelial-tumors
#1
Xuling Lin, Martin Fleisher, Marc Rosenblum, Oscar Lin, Adrienne Boire, Samuel Briggs, Yevgeniya Bensman, Brenda Hurtado, Larisa Shagabayeva, Lisa M DeAngelis, Katherine S Panageas, Antonio Omuro, Elena I Pentsova
Background: Diagnosis of leptomeningeal metastasis (LM) remains challenging due to low sensitivity of CSF cytology and infrequent unequivocal MRI findings. In a previous pilot study, we showed that rare cell capture technology (RCCT) could be used to detect circulating tumor cells (CTC) in the CSF of patients with LM from epithelial tumors. To establish the diagnostic accuracy of CSF-CTC in the diagnosis of LM, we applied this technique in a distinct, larger cohort of patients. Methods: In this institutional review board-approved prospective study, patients with epithelial tumors and clinical suspicion of LM underwent CSF-CTC evaluation and standard MRI and CSF cytology examination...
September 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28820866/-surgical-treatment-of-choledocholithiasis-in-a-patient-with-situs-inversus-totalis-a-case-report-and-literature-review
#2
Jerson Francisco Morales-Rodríguez, Estefania Corina Cotillo, Oscar Moreno-Loaiza
Situs inversus totalis (SIT) is a rare condition, in which there is transposition of the thoraco-abdominal organs. This situation leads to diagnostic and therapeutic difficulties in patients with acute surgical abdomen. The objective of this report is to present the case of a patient who presented with colonic pain in the epigastrium and left hypochondrium, in which the diagnosis of SIT, cholelithiasis and choledocholithiasis was reached after the respective imaging studies. Once the diagnosis was made, treatment was performed through retrograde endoscopic cholangiopancreatography (ERCP) and subsequent surgical exploration of bile ducts...
July 26, 2017: Medwave
https://www.readbyqxmd.com/read/28820791/teleophthalmic-approach-for-detection-of-corneal-diseases-accuracy-and-reliability
#3
Maria A Woodward, David C Musch, Christopher T Hood, Jonathan B Greene, Leslie M Niziol, V Swetha E Jeganathan, Paul P Lee
PURPOSE: Corneal and anterior segment diseases cause most of the urgent visits to eye care professionals. We evaluated the diagnostic accuracy of detecting corneal diseases using external photographs from 2 portable cameras for telemedicine purposes. METHODS: This is a prospective study of adults with a clinical diagnosis of corneal pathology including corneal abrasions, ulcers, scars, and pterygia. A cornea specialist provided the gold standard diagnosis by slit-lamp examination...
August 17, 2017: Cornea
https://www.readbyqxmd.com/read/28820309/advanced-cone-beam-ct-venous-angiographic-imaging
#4
Visish M Srinivasan, Gouthami Chintalapani, Edward A M Duckworth, Peter Kan
OBJECTIVE The evaluation of the venous neurovasculature, especially the dural venous sinuses, is most often performed using MR or CT venography. For further assessment, diagnostic cerebral angiography may be performed. Three-dimensional rotational angiography (3D-RA) can be applied to the venous system, producing 3D rotational venography (3D-RV) and cross-sectional reconstructions, which function as an adjunct to traditional 2D digital subtraction angiography. METHODS After querying the database of Baylor St...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28820013/diagnostic-performance-of-central-vein-sign-for-multiple-sclerosis-with-a-simplified-three-lesion-algorithm
#5
Andrew J Solomon, Richard Watts, Daniel Ontaneda, Martina Absinta, Pascal Sati, Daniel S Reich
BACKGROUND: Detection of a "central vein sign" (CVS) on FLAIR* magnetic resonance imaging (MRI) is highly specific and sensitive for multiple sclerosis (MS). We evaluated the specificity and sensitivity of simplified CVS algorithms for MS diagnosis. METHODS: MRIs from 10 participants with MS without additional comorbidities for MRI white matter abnormalities; 10 with MS and additional comorbidities for white matter abnormalities; 10 with migraine, white matter abnormalities, and no additional comorbidities; and 10 who had previously been erroneously diagnosed with MS were evaluated...
August 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28819825/ceus-li-rads-algorithm-implementation-and-key-differences-from-ct-mri
#6
Stephanie R Wilson, Andrej Lyshchik, Fabio Piscaglia, David Cosgrove, Hyun-Jung Jang, Claude Sirlin, Christoph F Dietrich, Tae Kyoung Kim, Juergen K Willmann, Yuko Kono
Contrast-enhanced ultrasound (CEUS) is a specialized form of ultrasound (US) performed with an intravenous injection of microbubble contrast agents. It has been successfully used for a variety of applications including characterization of liver tumors. In April 2014, the American College of Radiology (ACR) convened a working group of international experts to develop ACR CEUS Liver Imaging Reporting and Data System (CEUS LI-RADS). An initial version of CEUS LI-RADS was published in August 2016. Although the CEUS LI-RADS concept and principles for liver lesion characterization, using dynamic contrast enhancement features, are similar to those for CT or MRI, there are significant differences between CT/MRI and CEUS LI-RADS...
August 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28819781/comparison-of-synthetic-mammography-reconstructed-from-digital-breast-tomosynthesis-and-digital-mammography-evaluation-of-lesion-conspicuity-and-bi-rads-assessment-categories
#7
Giovanna Mariscotti, Manuela Durando, Nehmat Houssami, Mirella Fasciano, Alberto Tagliafico, Davide Bosco, Cristina Casella, Camilla Bogetti, Laura Bergamasco, Paolo Fonio, Giovanni Gandini
PURPOSE: To compare the interpretive performance of synthetic mammography (SM), reconstructed from digital breast tomosynthesis (DBT), and full-field digital mammography (FFDM) in a diagnostic setting, covering different conditions of breast density and mammographic signs. METHODS: A retrospective analysis was conducted on 231 patients, who underwent FFDM and DBT (from which SM images were reconstructed) between September 2014-September 2015. The study included 250 suspicious breast lesions, all biopsy proven: 148 (59...
August 17, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28819674/-imaging-techniques-in-modern-trauma-diagnostics
#8
T J Vogl, K Eichler, I Marzi, S Wutzler, K Zacharowski, C Frellessen
Modern trauma room management requires interdisciplinary teamwork and synchronous communication between a team of anaesthesists, surgeons and radiologists. As the length of stay in the trauma room influences morbidity and mortality of a severely injured person, optimizing time is one of the main targets. With the direct involvement of modern imaging techniques the injuries caused by trauma should be detected within a very short period of time in order to enable a priority-orientated treatment. Radiology influences structure and process quality, management and development of trauma room algorithms regarding the use of imaging techniques...
August 17, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28819577/the-role-of-laparoscopy-in-the-management-of-a-diagnostic-dilemma-jejunal-ectopic-pancreas-developing-into-jejunojejunal-intussusception
#9
Alessio Giordano, Giovanni Alemanno, Carlo Bergamini, Paolo Prosperi, Alessandro Bruscino, Andrea Valeri
Ectopic pancreas (EP) is a rare congenital anomaly defined as the presence of pancreatic tissue in topographic anomaly. It is usually silent but it may become clinically evident when complicated by acute conditions. The development of laparoscopic surgery has changed the way to manage such conditions, especially in the setting of emergency surgery, thanks to its diagnostic and therapeutic role with excellent results. We decided to perform an emergency diagnostic exploratory laparoscopy in a 29-year-old man with an acute abdomen and nonspecific radiological images for intestinal occlusion...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28819203/differential-diagnostic-performance-of-acoustic-radiation-force-impulse-imaging-in-small-%C3%A2-20%C3%A2-mm-breast-cancers-is-it-valuable
#10
Si-Da Wang, Lei Wang, Zhi-Xian Li, Kang-Lai Wei, Xin-Hong Liao, Yuan-Yuan Chen, Xue Huang
To evaluate acoustic radiation force impulse (ARFI) inthe differential diagnosis of small (≤20 mm) solid breast lesions and identify the most efficient ARFI parameters. Conventional ultrasonography and ARFIwere performed in 120 patients with 121 small solid breast lesions. The area ratios (ARs) of the lesion on virtual touch tissue compared to B-mode were calculated. The shear wave velocity of the inner (SWVi) and boundary (SWVb) of the lesions and surrounding fatty tissue (SWVf) was measured. The ratio of SWVi to SWVf (SWVrat) was calculated...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819093/non-seminomatous-germ-cell-tumor-presenting-with-superior-vena-cava-syndrome
#11
Paolo K Soriano, Muhammad F Iqbal, Omar M Siddiqui, Jeff F Wang, Meghna R Desai
BACKGROUND Primary mediastinal non-seminomatous germ cell tumors (NSGCTs) are aggressive and carry a poor five-year disease free survival rate even with aggressive treatment. We describe a young adult male with primary mediastinal NSGCT presenting with airway obstruction and superior vena cava syndrome (SVCS). CASE REPORT The patient presented with four weeks of nonproductive cough, weight loss, and right-sided pleuritic chest pain. Chest computed topography (CT) imaging demonstrated a right-sided mediastinal mass determined as a yolk sac tumor on biopsy...
August 18, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28818992/long-half-life-89-zr-labeled-radiotracers-can-guide-in-suite-percutaneous-molecular-imaging-pet-ct-guided-biopsies-without-reinjection-of-radiotracer
#12
Francois H Cornelis, Jeremy Durack, Neeta Pandit-Taskar, Gary A Ulaner, Jason S Lewis, Michael J Morris, Stephen B Solomon
Rationale: To evaluate the feasibility of in suite Zr89 labeled radiotracer positron emission tomography-computed tomography (PET/CT)-guided biopsies performed without reinjection. Methods: From 2013-2016, 12 patients (7 males, 5 females; mean age 61 years, range 40-75) with suspected metastatic prostate or breast carcinoma on either imaging or biochemical progression underwent 14 percutaneous biopsies after diagnostic PET/CT using (89)Zr labeled radiotracers (mean dose: 180MBq; range: 126-189MBq) targeting prostate specific membrane antigen (PSMA) (n = 7) or human epidermal growth factor receptor 2 (HER2) (n = 5)...
August 17, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28818990/clinical-use-and-utility-of-amyloid-imaging
#13
Henryk Barthel, Osama Sabri
Currently, three amyloid PET tracers are approved and commercially available for clinical use. They allow for the accurate in vivo detection of amyloid plaques, one hallmark of Alzheimer's disease (AD). Here, we review the current knowledge on the clinical use and utility of amyloid imaging. Appropriate use criteria for the clinical application of amyloid imaging are established, and most currently available data point to their validity. Visual amyloid image analysis is highly standardized. Disclosure of amyloid imaging results is desired by many cognitively impaired subjects, and seems to be safe once appropriate education is delivered to the disclosing clinicians...
August 17, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28818983/current-concepts-in-68-ga-dotatate-nen-imaging-interpretation-biodistribution-dosimetry-and-molecular-strategies
#14
Lisa Bodei, Valentina Ambrosini, Ken Herrmann, Irvin Modlin
(68)Ga-DOTATATE PET/CT provides information of the location(s) of somatostatin receptor expressing tumors. Integrating this imaging data effectively in patient care requires the clinical history, the histopathology and biomarker information as well as grade, stage and prior imaging. Previous therapies and technical aspects of the study should be considered, given their ability to alter the interpretation of the images. This includes physiologic biodistribution of the radiotracer, as well as conditions that engender false positive results...
August 17, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28818670/depictive-and-metric-body-size-estimation-in-anorexia-nervosa-and-bulimia-nervosa-a-systematic-review-and-meta-analysis
#15
REVIEW
Simone Claire Mölbert, Lukas Klein, Anne Thaler, Betty J Mohler, Chiara Brozzo, Peter Martus, Hans-Otto Karnath, Stephan Zipfel, Katrin Elisabeth Giel
A distorted representation of one's own body is a diagnostic criterion and core psychopathology of both anorexia nervosa (AN) and bulimia nervosa (BN). Despite recent technical advances in research, it is still unknown whether this body image disturbance is characterized by body dissatisfaction and a low ideal weight and/or includes a distorted perception or processing of body size. In this article, we provide an update and meta-analysis of 42 articles summarizing measures and results for body size estimation (BSE) from 926 individuals with AN, 536 individuals with BN and 1920 controls...
August 10, 2017: Clinical Psychology Review
https://www.readbyqxmd.com/read/28818444/influence-of-tube-current-settings-on-diagnostic-detection-of-root-fractures-using-cone-beam-computed-tomography-an-in%C3%A2-vitro-study
#16
Ricardo Tangari-Meira, José Ricardo Vancetto, Lívia Nordi Dovigo, Guilherme Monteiro Tosoni
INTRODUCTION: This study assessed the influence of tube current settings (milliamperes [mA]) on the diagnostic detection of root fractures (RFs) using cone-beam computed tomographic (CBCT) imaging. METHOD: Sixty-eight human anterior and posterior teeth were submitted to root canal preparation, and 34 root canals were filled. The teeth were divided into 2 groups: the control group and the fractured group. RFs were induced using a universal mechanical testing machine; afterward, the teeth were placed in a phantom...
August 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28818221/venography-versus-intravascular-ultrasound-for-diagnosing-and-treating-iliofemoral-vein-obstruction
#17
Paul J Gagne, Robert W Tahara, Carl P Fastabend, Lukasz Dzieciuchowicz, William Marston, Suresh Vedantham, Windsor Ting, Mark D Iafrati
OBJECTIVE: The Venogram vs IVUS for Diagnosing Iliac vein Obstruction (VIDIO) trial was designed to compare the diagnostic efficacy of intravascular ultrasound (IVUS) with multiplanar venography for iliofemoral vein obstruction. METHODS: During a 14-month period beginning July 2014, 100 patients with chronic Clinical, Etiologic, Anatomic, and Pathophysiologic clinical class C4 to C6 venous disease and suspected iliofemoral vein obstruction were enrolled at 11 U...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28818219/contemporary-outcomes-after-venography-guided-treatment-of-patients-with-may-thurner-syndrome
#18
Johnathon C Rollo, Steven M Farley, Adam Z Oskowitz, Karen Woo, Brian G DeRubertis
OBJECTIVE: Patients with May-Thurner syndrome (MTS) present with a spectrum of findings ranging from mild left leg edema to extensive iliofemoral deep venous thrombosis (DVT). Whereas asymptomatic left common iliac vein (LCIV) compression can be seen in a high proportion of normal individuals on axial imaging, the percentage of these persons with symptomatic compression is small, and debate exists about the optimal clinical and diagnostic criteria to treat these lesions in patients with symptomatic venous disease...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28818093/case-report-value-of-gene-expression-profiling-in-the-diagnosis-of-atypical-neuroblastoma
#19
Anne C Harttrampf, Qingrong Chen, Eva Jüttner, Julia Geiger, Gordon Vansant, Javed Khan, Udo Kontny
BACKGROUND: Nephroblastoma and neuroblastoma belong to the most common abdominal malignancies in childhood. Similarities in the initial presentation may provide difficulties in distinguishing between these two entities, especially if unusual variations to prevalent patterns of disease manifestation occur. Because of the risk of tumor rupture, European protocols do not require biopsy for diagnosis, which leads to misdiagnosis in some cases. CASE PRESENTATION: We report on a 4½-year-old girl with a renal tumor displaying radiological and laboratory characteristics supporting the diagnosis of nephroblastoma...
August 17, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28817878/re-diagnostic-performance-of-diffusion-weighted-magnetic-resonance-imaging-in-differentiating-human-renal-lesions-benignity-or-malignancy-a%C3%A2-meta-analysis
#20
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