keyword
MENU ▼
Read by QxMD icon Read
search

MRI Guided

keyword
https://www.readbyqxmd.com/read/29145421/radiographic-prediction-of-meningioma-grade-by-semantic-and-radiomic-features
#1
Thibaud P Coroller, Wenya Linda Bi, Elizabeth Huynh, Malak Abedalthagafi, Ayal A Aizer, Noah F Greenwald, Chintan Parmar, Vivek Narayan, Winona W Wu, Samuel Miranda de Moura, Saksham Gupta, Rameen Beroukhim, Patrick Y Wen, Ossama Al-Mefty, Ian F Dunn, Sandro Santagata, Brian M Alexander, Raymond Y Huang, Hugo J W L Aerts
OBJECTIVES: The clinical management of meningioma is guided by tumor grade and biological behavior. Currently, the assessment of tumor grade follows surgical resection and histopathologic review. Reliable techniques for pre-operative determination of tumor grade may enhance clinical decision-making. METHODS: A total of 175 meningioma patients (103 low-grade and 72 high-grade) with pre-operative contrast-enhanced T1-MRI were included. Fifteen radiomic (quantitative) and 10 semantic (qualitative) features were applied to quantify the imaging phenotype...
2017: PloS One
https://www.readbyqxmd.com/read/29143875/the-role-of-18f-fdg-pet-ct-and-pet-mri-in-pancreatic-ductal-adenocarcinoma
#2
Randy Yeh, Laurent Dercle, Ishan Garg, Zhen Jane Wang, David M Hough, Ajit H Goenka
Pancreatic ductal adenocarcinoma (PDAC) remains a difficult disease to treat and continues to portend a poor prognosis, as most patients are unresectable at diagnosis. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) combined with CT (PET/CT) has been a cornerstone in oncological imaging of different cancers; however, the role of PET/CT in PDAC is continually evolving and currently not well established. Studies have shown the potential of PET/CT in guiding the management of patients with PDAC, with possible added benefit over anatomic imaging with CT or MRI in certain scenarios...
November 16, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29143113/percutaneous-ct-guided-sacroiliac-joint-sampling-for-infection-aspiration-biopsy-and-technique
#3
David Knipp, F Joseph Simeone, Sandra B Nelson, Ambrose J Huang, Connie Y Chang
OBJECTIVE: To evaluate methods of CT-guided sacroiliac joint sampling in patients with suspected infection. MATERIALS AND METHODS: All CT-guided sacroiliac joint sampling procedures for suspected infection were reviewed for sampling type (aspiration, lavage aspiration, biopsy), microbiology results, and clinical and imaging follow-up. The primary gold standard was anatomic pathology. If pathology was not available, then positive blood culture with the same organism as SIJ sampling, imaging and clinical follow-up, or clinical follow-up only were used...
November 15, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29141515/mri-powered-biomedical-devices
#4
Sierra Hovet, Hongliang Ren, Sheng Xu, Bradford Wood, Junichi Tokuda, Zion Tsz Ho Tse
Magnetic resonance imaging (MRI) is beneficial for imaging-guided procedures because it provides higher resolution images and better soft tissue contrast than computed tomography (CT), ultrasound, and X-ray. MRI can be used to streamline diagnostics and treatment because it does not require patients to be repositioned between scans of different areas of the body. It is even possible to use MRI to visualize, power, and control medical devices inside the human body to access remote locations and perform minimally invasive procedures...
November 16, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/29140989/joint-approach-based-on-clinical-and-imaging-features-to-distinguish-non-neoplastic-from-neoplastic-pituitary-stalk-lesions
#5
Ji Ye Lee, Ji Eun Park, Woo Hyun Shim, Seung Chai Jung, Choong Gon Choi, Sang Joon Kim, Jeong Hoon Kim, Ho Sung Kim
PURPOSE: Distinguishing non-neoplastic pituitary stalk lesions (non-NPSLs) from neoplastic pituitary stalk lesions (NPSLs) is a major concern in guiding treatment for a thickened pituitary stalk. Our study aimed to aid provide preoperative diagnostic assistance by combining clinical and magnetic resonance imaging (MRI) findings to distinguish non-NPSLs from NPSLs. MATERIALS AND METHODS: We recruited 158 patients with thickened pituitary stalk lesions visible on MRI...
2017: PloS One
https://www.readbyqxmd.com/read/29139095/local-alkylating-chemotherapy-applied-immediately-after-5-ala-guided-resection-of-glioblastoma-does-not-provide-additional-benefit
#6
William Sage, Mathew Guilfoyle, Catriona Luney, Adam Young, Rohitashwa Sinha, Donatella Sgubin, Joseph H McAbee, Ruichong Ma, Sarah Jefferies, Rajesh Jena, Fiona Harris, Kieren Allinson, Tomasz Matys, Wendi Qian, Thomas Santarius, Stephen Price, Colin Watts
Grade IV glioma is the most common and aggressive primary brain tumour. Gross total resection with 5-aminolevulinic acid (5-ALA) guided surgery combined with local chemotherapy (carmustine wafers) is an attractive treatment strategy in these patients. No previous studies have examined the benefit carmustine wafers in a treatment programme of 5-ALA guided resection followed by a temozolomide-based chemoradiotherapy protocol. The objective of this study was to examine the benefit of carmustine wafers on survival in patients undergoing 5-ALA guided resection...
November 14, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29137032/non-hodgkin-lymphoma-of-multiple-extranodal-involvement-seen-on-mri-fdg-pet-ct-scans-a-case-report
#7
Shan Wang, Meng Meng, Qiuhu Wang, Kai Xu
RATIONALE: Anaplastic large cell lymphoma (ALCL) is a rare type of non-Hodgkin lymphoma (NHL). The most common extranodal sites of ALCL are skin, subcutaneous tissue, bone, lung, and gastrointestinal organs. This study reports a case of ALCL with multiple extranodal involvement, especially the whole body skeletal muscles, with the aim to share the imaging features of the ALCL including magnetic resonance imaging (MRI) and 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT)...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136287/quantification-of-mri-visibility-and-artefacts-at-3t-of-liquid-fiducial-marker-in-a-pancreas-tissue-mimicking-phantom
#8
Sergej Schneider, Rasmus Irming Jølck, Esther Gera Cornelia Troost, Aswin Louis Hoffmann
PURPOSE: X-ray based position verification of the target volume in image-guided radiation therapy (IGRT) of patients with pancreatic ductal adenocarcinoma (PDAC) is currently performed on solid fiducial markers that are implanted under endoscopic ultrasonography. A new biodegradable liquid fiducial marker has recently been introduced. To assess its potential use for magnetic resonance imaging (MRI) guided photon or proton radiotherapy of PDAC, the MRI visibility and artefacts of this marker were quantified and compared against solid gold markers...
November 14, 2017: Medical Physics
https://www.readbyqxmd.com/read/29135471/first-patients-treated-with-a-1-5-t-mri-linac-clinical-proof-of-concept-of-a-high-precision-high-field-mri-guided-radiotherapy-treatment
#9
B W Raaymakers, I M Jürgenliemk-Schulz, G H Bol, M Glitzner, A N T J Kotte, B van Asselen, J C J de Boer, J J Bluemink, S L Hackett, M A Moerland, S J Woodings, J W H Wolthaus, H M van Zijp, M E P Philippens, R Tijssen, J G M Kok, E N de Groot-van Breugel, I Kiekebosch, L T C Meijers, C N Nomden, G G Sikkes, P A H Doornaert, W S C Eppinga, N Kasperts, L G W Kerkmeijer, J H A Tersteeg, K J Brown, B Pais, P Woodhead, J J W Lagendijk
The integration of 1.5 T MRI functionality with a radiotherapy linear accelerator (linac) has been pursued since 1999 by the UMC Utrecht in close collaboration with Elekta and Philips. The idea behind this integrated device is to offer unrivalled, online and real-time, soft-tissue visualization of the tumour and the surroundings for more precise radiation delivery. The proof of concept of this device was given in 2009 by demonstrating simultaneous irradiation and MR imaging on phantoms, since then the device has been further developed and commercialized by Elekta...
November 14, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29134189/toward-uniform-implementation-of-parametric-map-digital-imaging-and-communication-in-medicine-standard-in-multisite-quantitative-diffusion-imaging-studies
#10
Dariya Malyarenko, Andriy Fedorov, Laura Bell, Melissa Prah, Stefanie Hectors, Lori Arlinghaus, Mark Muzi, Meiyappan Solaiyappan, Michael Jacobs, Maggie Fung, Amita Shukla-Dave, Kevin McManus, Michael Boss, Bachir Taouli, Thomas E Yankeelov, Christopher Chad Quarles, Kathleen Schmainda, Thomas L Chenevert, David C Newitt
This paper reports on results of a multisite collaborative project launched by the MRI subgroup of Quantitative Imaging Network to assess current capability and provide future guidelines for generating a standard parametric diffusion map Digital Imaging and Communication in Medicine (DICOM) in clinical trials that utilize quantitative diffusion-weighted imaging (DWI). Participating sites used a multivendor DWI DICOM dataset of a single phantom to generate parametric maps (PMs) of the apparent diffusion coefficient (ADC) based on two models...
January 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29129265/does-intra-tumoural-fat-on-mri-predict-visibility-of-small-%C3%A2-3-cm-hepatocellular-carcinomas-during-ultrasound-guided-tumour-ablation
#11
T C H Hui, I K H Huang, W K Lau, U Pua
AIM: To assess if intra-tumoural fat on magnetic resonance imaging (MRI) affects the ultrasonographic (US) visibility of small (≤3 cm) hepatocellular carcinomas (HCC) during radiofrequency ablation (RFA). MATERIALS AND METHODS: Institutional review board approval was obtained. A retrospective review of all patients who underwent image-guided ablation between 1 January 2010 and 31 April 2015 was performed. Patients with HCC who underwent US RFA were included. Inclusion criteria included small tumours (≤3 cm), treatment-naive cases or new focus of HCC in a different and untreated segment, and pre-procedural MRI...
November 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29129004/multiple-hereditary-osteochondromatosis-with-spinal-cord-compression-case-report
#12
Oscar García-González, J Nicolás Mireles-Cano, Natalia Sánchez-Zavala, Miguel A Chagolla-Santillan, Segio M Orozco-Ramirez, Pedro Silva-Cerecedo, Mario Murguia-Perez, Fernando Rueda-Franco
OBJECTIVE: The purpose of the report is to describe a patient with hereditary osteochondromatosis and spinal cord compression at the thoracic level. CLINICAL FEATURES: An 8-year-old patient with hereditary osteochondromatosis inherited from his father presented paraparesis in the left foot, leading to complete paralysis in both legs. INTERVENTION: In a CT scan, a bony tumor rising from the posterior wall of the T3 body narrowing the spinal canal, and the MRI spinal cord compression at the same level and the hydrosyringomyelic cavity extended to the conus medullaris; with an anterior thoracic approach to T2-T4, the fibro-cartilaginous tumor was removed, and the stabilization was completed with bone graft and a plate...
November 11, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29128990/erratum-to-fertility-sparing-for-young-patients-with-gynecologic-cancer-how-mri-can-guide-patient-selection-prior-to-conservative-management
#13
Sinead H McEvoy, Stephanie Nougaret, Nadeem R Abu-Rustum, Hebert Alberto Vargas, Elizabeth A Sadowski, Christine O Menias, Fuki Shitano, Shinya Fujii, Ramon E Sosa, Joanna G Escalon, Evis Sala, Yulia Lakhman
The original version of this article unfortunately contained mistakes. The figures 7D, 7E and 7F were missing in the article and arrows were missing in the figures 6C, 8B and 11C. The year of publication and volume number for references 19, 79 and 87 have been updated. Also, the Table 2 layout has been improved for better readability. The Publisher apologizes for the mistakes and the inconvenience caused.
November 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29128843/shape-controlled-magnetic-mesoporous-silica-nanoparticles-for-magnetically-mediated-suicide-gene-therapy-of-hepatocellular-carcinoma
#14
Zheng Wang, Zhimin Chang, Mengmeng Lu, Dan Shao, Juan Yue, Dian Yang, Xiao Zheng, Mingqiang Li, Kan He, Ming Zhang, Li Chen, Wen-Fei Dong
Magnetic nanoparticles (NPs) have emerged as a promising tool for suicide gene therapy. However, the separate delivery of the suicide gene and prodrug in current systems limits their clinical translation. Therefore, improving magnetically mediated suicide gene therapy by exploring higher performance magnetic NP-based hybrid nanoplatforms is an important challenge. In the current study, shape-controlled magnetic mesoporous silica nanoparticles (M-MSNs) were prepared, and their performance in magnetic resonance imaging (MRI)-guided, magnetically targeted and hyperthermia-enhanced suicide gene therapy of hepatocellular carcinoma (HCC) was investigated...
November 4, 2017: Biomaterials
https://www.readbyqxmd.com/read/29124254/developmental-patterns-based-individualized-parcellation-of-infant-cortical-surface
#15
Gang Li, Li Wang, Weili Lin, Dinggang Shen
The human cerebral cortex develops dynamically during the early postnatal stage, reflecting the underlying rapid changes of cortical microstructures and their connections, which jointly determine the functional principles of cortical regions. Hence, the dynamic cortical developmental patterns are ideal for defining the distinct cortical regions in microstructure and function for neurodevelopmental studies. Moreover, given the remarkable inter-subject variability in terms of cortical structure/function and their developmental patterns, the individualized cortical parcellation based on each infant's own developmental patterns is critical for precisely localizing personalized distinct cortical regions and also understanding inter-subject variability...
September 2017: Medical Image Computing and Computer-assisted Intervention: MICCAI ..
https://www.readbyqxmd.com/read/29124069/sodium-fluorescein-guided-resection-under-the-yellow-560%C3%A2-nm-surgical-microscope-filter-in-malignant-gliomas-our-first-38-cases-experience
#16
Ningning Zhang, Hailong Tian, Dezhang Huang, Xianbing Meng, Wenqiang Guo, Chaochao Wang, Xin Yin, Hongying Zhang, Bin Jiang, Zheng He, Zhigang Wang
Objective: Sodium fluorescein (FL) had been safely used in fluorescence-guided microsurgery for imaging various brain tumors. Under the YELLOW 560 nm surgical microscope filter, low-dose FL as a fluorescent dye helps in visualization. Our study investigated the safety and efficacy of this innovative technique in malignant glioma (MG) patients. Patients and Method: 38 patients suffering from MGs confirmed by pathology underwent FL-guided resection under YELLOW 560 nm surgical microscope filter...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29123012/prostate-cancer-molecular-imaging-standardized-evaluation-promise-proposed-mitnm-classification-for-the-interpretation-of-psma-ligand-pet-ct
#17
Matthias Eiber, Ken Herrmann, Jeremie Calais, Boris Hadaschihk, Frederik L Giesel, Markus Hartenbach, Thomas Hope, Robert Reiter, Tobias Maurer, Wolfgang A Weber, Wolfgang P Fendler
Prostate-specific membrane antigen (PSMA)-ligand positron emission tomography (PET)-imaging provides unprecedented accuracy for whole body staging of prostate cancer. As PSMA-ligand PET/computed tomography (CT) is increasingly adopted in clinical trials and routine practice worldwide, a unified language for image reporting is urgently needed. We propose a molecular imaging tumor, node and metastasis system (miTNM Version 1.0) as standardized reporting framework for PSMA-ligand PET/CT or PET/magnetic resonance imaging (MRI)...
November 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29122667/is-breast-mri-a-helpful-additional-diagnostic-test-in-suspicious-mammographic-microcalcifications
#18
Pascal A T Baltzer, Barbara Bennani-Baiti, Alexander Stöttinger, Alexander Bumberger, Panagiotis Kapetas, Paola Clauser
PURPOSE: Microcalcifications are a common finding in mammography and usually require invasive procedures to diagnose or exclude malignancy. As many microcalcifications are due to benign lesions, we wanted to assess whether breast MRI as an additional diagnostic tool may be used to distinguish benign from malignant in this setting. MATERIALS AND METHODS: Eligible for this retrospective, IRB-approved observational study were 858 consecutive patients (mean age 54±11years) undergoing stereotactically-guided biopsies of suspicious mammographic microcalcifications during three year at our institution...
November 6, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29122471/3d-registration-of-mpmri-for-assessment-of-prostate-cancer-focal-therapy
#19
Clément Orczyk, Andrew B Rosenkrantz, Artem Mikheev, Arnauld Villers, Myriam Bernaudin, Samir S Taneja, Samuel Valable, Henry Rusinek
RATIONALE AND OBJECTIVES: This study aimed to assess a novel method of three-dimensional (3D) co-registration of prostate magnetic resonance imaging (MRI) examinations performed before and after prostate cancer focal therapy. MATERIALS AND METHODS: We developed a software platform for automatic 3D deformable co-registration of prostate MRI at different time points and applied this method to 10 patients who underwent focal ablative therapy. MRI examinations were performed preoperatively, as well as 1 week and 6 months post treatment...
November 6, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29122311/-uveitis-diagnostic-work-up-recommendations-from-an-expert-committee
#20
P Sève, B Bodaghi, S Trad, J Sellam, D Bellocq, P Bielefeld, D Sène, G Kaplanski, D Monnet, A Brézin, M Weber, D Saadoun, P Cacoub, C Chiquet, L Kodjikian
INTRODUCTION: Diagnostic work-up of uveitis involves many uncertainties. Search for an etiology should take into account the epidemiology of uveitis and focus on the most severe diseases or those, which can be treated. This work was undertaken to establish recommendations for the diagnosis work-up of uveitis. METHODS: Recommendations were developed by a multidisciplinary panel of 15 experts, including internists, ophthalmologists and a rheumatologist and are based on a review of the literature with regard to effectiveness of investigations and the results of the ULISSE study, which is the first prospective study assessing the efficiency of a standardized strategy for the etiological diagnosis of uveitis...
November 6, 2017: La Revue de Médecine Interne
keyword
keyword
43392
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"