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Msk imaging

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https://www.readbyqxmd.com/read/28096168/sk-channel-enhancers-attenuate-ca2-dependent-arrhythmia-in-hypertrophic-hearts-by-regulating-mito-ros-dependent-oxidation-and-activity-of-ryr
#1
Tae Yun Kim, Radmila Terentyeva, Karim H F Roder, Weiyan Li, Man Liu, Ian Greener, Shanna Hamilton, Iuliia Polina, Kevin R Murphy, Richard T Clements, Samuel C Dudley, Gideon Koren, Bum-Rak Choi, Dmitry Terentyev
AIM: s: Plasmamembrane small conductance Ca<su2+p>-activated K<su+ p > (SK) channels were implicated in ventricular arrhythmias in infarcted and failing hearts. Recently, SK channels were detected in the mitochondria inner membrane (mSK), and their activation protected from acute ischemia-reperfusion injury by reducing intracellular levels of reactive oxygen species (ROS). We hypothesized that mSK play an important role in regulating mitochondrial function in chronic cardiac diseases...
January 17, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28090449/ultrashort-time-to-echo-magnetic-resonance-techniques-for-the-musculoskeletal-system
#2
REVIEW
Palanan Siriwanarangsun, Sheronda Statum, Reni Biswas, Won C Bae, Christine B Chung
Magnetic resonance (MR) imaging has been widely implemented as a non-invasive modality to investigate musculoskeletal (MSK) tissue disease, injury, and pathology. Advancements in MR sequences provide not only enhanced morphologic contrast for soft tissues, but also quantitative biochemical evaluation. Ultrashort time to echo (UTE) sequence, in particular, enables novel morphologic and quantitative evaluation of previously unseen MSK tissues. By using short minimum echo times (TE) below 1 msec, the UTE sequence can unveil short T2 properties of tissues including the deepest layers of the articular cartilage, cartilaginous endplate at the discovertebral junction, the meniscus, and the cortical bone...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28070269/musculoskeletal-diagnostic-ultrasound-imaging-for-thickness-measurement-of-four-principal-muscles-of-the-cervical-spine-a-reliability-and-agreement-study
#3
Cecilie Krage Øverås, Birgitte Lawaetz Myhrvold, Gro Røsok, Eli Magnesen
BACKGROUND: The reliability of musculoskeletal diagnostic ultrasound imaging (MSK-DUSI) for the evaluation of neck musculature has been sparsely documented in the research literature. Until now, research has featured a limited number of subjects and only few studies have tested for both inter- and intra-reliability using appropriate methodology. METHODS: Four examiners conducted an inter- and intra-rater reliability and agreement study. Fifty females with and without neck pain (NP) between the ages of 20-70 were recruited from October 2014 to April 2015...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/28047711/su-f-r-06-traumatic-brachial-plexus-injury-imaging-developing-a-coherent-clinical-protocol-from-literature-review-through-practice
#4
D Wu, E France, J Lambert, J Hinkle
PURPOSE: Medical Physics teams can now play a critical role to help plan and provide studied approaches for traumatic brachial plexus MR imaging (tbpMRI). This is especially important for coordination with uncommon applications, since it is challenging to select the right modality, parameters, and train technologists on the essential components. For this work, we started with a review of the medical literature, performed crossover/volunteer studies to bring tbpMRI to practice with greater image QC and protocol management...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046320/we-fg-206-06-dual-input-tracer-kinetic-modeling-and-its-analog-implementation-for-dynamic-contrast-enhanced-dce-mri-of-malignant-mesothelioma-mpm
#5
S Lee, A Rimner, S Hayes, M Hunt, J Deasy, M Zauderer, V Rusch, N Tyagi
PURPOSE: To use dual-input tracer kinetic modeling of the lung for mapping spatial heterogeneity of various kinetic parameters in malignant MPM METHODS: Six MPM patients received DCE-MRI as part of their radiation therapy simulation scan. 5 patients had the epitheloid subtype of MPM, while one was biphasic. A 3D fast-field echo sequence with TR/TE/Flip angle of 3.62ms/1.69ms/15° was used for DCE-MRI acquisition. The scan was collected for 5 minutes with a temporal resolution of 5ߝ9 seconds depending on the spatial extent of the tumor...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27999984/is-there-an-added-value-of-t1-weighted-contrast-enhanced-fat-suppressed-spin-echo-mr-sequences-compared-to-stir-sequences-in-mri-of-the-foot-and-ankle
#6
Veronika Zubler, Marco Zanetti, Tobias J Dietrich, Norman Espinosa, Christian W Pfirrmann, Nadja Mamisch-Saupe
OBJECTIVES: To prospectively compare T1-weighted fat-suppressed spin-echo magnetic resonance (MR) sequences after gadolinium application (T1wGdFS) to STIR sequences in patients with acute and chronic foot pain. METHODS: In 51 patients referred for MRI of the foot and ankle, additional transverse and sagittal T1wGdFS sequences were obtained. Two sets of MR images (standard protocol with STIR or T1wGdFS) were analysed. Diagnosis, diagnostic confidence, and localization of the abnormality were noted...
December 20, 2016: European Radiology
https://www.readbyqxmd.com/read/27986513/fixed-flexion-knee-radiography-using-a-new-positioning-device-produced-highly-repeatable-measurements-of-joint-space-width-elsa-brasil-musculoskeletal-study-elsa-brasil-msk
#7
Rosa Weiss Telles, Luciana Costa-Silva, Luciana A C Machado, Rodrigo Citton Padilha Dos Reis, Sandhi Maria Barreto
OBJECTIVE: To describe the performance of a non-fluoroscopic fixed-flexion PA radiographic protocol with a new positioning device, developed for the assessment of knee osteoarthritis (OA) in ELSA-Brasil MSK. MATERIAL AND METHODS: A test-retest design including 19 adults (38 knee images) was conducted. Feasibility of the radiographic protocol was assessed by image quality parameters and presence of radioanatomic alignment according to intermargin distance (IMD) values...
November 26, 2016: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/27870683/increasing-role-of-image-guided-ablation-in-the-treatment-of-musculoskeletal-tumors
#8
Anil Nicholas Kurup, Matthew R Callstrom
In the last decade, percutaneous treatment of musculoskeletal (MSK) tumors has become more established in routine clinical care while also undergoing a number of advancements. Ablative techniques to palliate painful skeletal metastases have gained wide acceptance, while goals for ablation have evolved to include local control of oligometastases and desmoid tumors. Bone consolidation or augmentation is now frequently used in conjunction with or instead of ablation of skeletal tumors to stabilize pathologic fractures or prevent further morbidity that could result from fractures caused by tumor progression...
November 2016: Cancer Journal
https://www.readbyqxmd.com/read/27742026/imaging-of-musculoskeletal-infection
#9
REVIEW
Kevin R Math, Jennifer L Berkowitz, Stephen A Paget, Yoshimi Endo
Diagnostic imaging plays a crucial role in confirming the diagnosis of musculoskeletal (MSK) infection and determining the severity and extent of disease. The clinical diagnosis may be challenging due to the nonspecific presentation of pain and swelling. There are certain features that are pathognomonic for infection. Pre-existing conditions an make diagnosing infection difficult. Prior surgery can create artifacts on advanced imaging modalities such as computed tomography and MRI, obscuring the tissues immediately around the hardware...
November 2016: Rheumatic Diseases Clinics of North America
https://www.readbyqxmd.com/read/27600141/society-of-skeletal-radiology-2016-annual-meeting-summary
#10
Michael G Fox, Laura W Bancroft
Peer-reviewed abstracts presented at the 2016 Society of Skeletal Radiology (SSR) Annual Meeting were reviewed following oral presentation. Topics felt to be of potential interest to musculoskeletal (MSK) investigators and practicing clinicians are highlighted in this compilation and analysis of the meeting. New concepts regarding MSK imaging and intervention, MSK protocols and techniques, radiology education and quality improvement are included. ePoster highlights are also presented.
November 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27454003/sparse-semac-rapid-and-improved-semac-metal-implant-imaging-using-sparse-sense-acceleration
#11
Ricardo Otazo, Mathias Nittka, Mary Bruno, Esther Raithel, Christian Geppert, Soterios Gyftopoulos, Michael Recht, Leon Rybak
PURPOSE: To develop an accelerated SEMAC metal implant MRI technique (Sparse-SEMAC) with reduced scan time and improved metal distortion correction. METHODS: Sparse-SEMAC jointly exploits the inherent sparsity along the additional phase-encoding dimension and multicoil encoding capabilities to significantly accelerate data acquisition. A prototype pulse sequence with pseudorandom ky -kz undersampling and an inline image reconstruction was developed for integration in clinical studies...
July 25, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27444614/accuracy-and-efficacy-of-fluoroscopy-guided-pars-interarticularis-injections-on-immediate-and-short-term-pain-relief
#12
L Michael Kershen, Nicholas C Nacey, James T Patrie, Michael G Fox
PURPOSE: To determine the accuracy and short-term efficacy of fluoroscopy-guided steroid/anesthetic injections for symptomatic pars interarticularis (pars) defects. MATERIALS AND METHODS: Following IRB approval, all fluoroscopically guided pars injections from a single institution (6/2010 to 3/2016) were retrospectively and independently reviewed by two MSK radiologists. The radiologists evaluated the fluoroscopic images to determine if all of the pars injections associated with each procedure were intra-pars (n = 57 procedures; 106 pars injections), peri-pars (n = 3 procedures; three pars injected), or a combination of intra-pars and peri-pars (n = 6 procedures; 12 pars injected)...
October 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27380319/imaging-characteristics-of-cervical-spine-extra-arachnoid-fluid-collections-managed-conservatively
#13
David A Lawrence, Brian Trotta, Francis H Shen, Jason T Druzgal, Michael G Fox
OBJECTIVE: Determine the MRI characteristics of large post-traumatic cervical spine extra-arachnoid collections managed conservatively in clinically stable patients and whether evidence of clinical or imaging deterioration materialized. MATERIALS AND METHODS: Following IRB approval, we conducted a retrospective search for all patients (>16 years old) over a 17-months period who had an extra-arachnoid fluid collection reported on a post-traumatic cervical spine MRI...
September 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27354609/hiv-related-kaposi-s-sarcoma-with-musculoskeletal-involvement-in-the-modern-antiretroviral-era
#14
Panagiotis Papanastasopoulos, Bertrand Annan, Alessia Dalla Pria, Mark Bower
AIM: To describe the patterns of disease and clinical outcomes of MSK-KS in people living with HIV in the era of (combination anti-retroviral therapy cART). PATIENTS AND METHODS: We reviewed our prospectively collected dataset of patients with HIV with biopsy-proven KS; 17 out of 1,489 seropositive patients were identified with subsequent evidence of MSK involvement by KS. We collected data with regards to clinicopathological parameters and radiological patterns of disease...
July 2016: Anticancer Research
https://www.readbyqxmd.com/read/27281317/rotator-cuff-fatty-infiltration-are-coronal-images-more-helpful-for-characterization-than-sagittal-images
#15
Munish Chitkara, Marissa Albert, Tony Wong, John O'Donnell, Soterios Gyftopoulos
OBJECTIVE: To assess for a difference in the characteriza - tion of rotator cuff (RC) muscle fatty infiltration (FI) between the sagittal and coronal planes in the setting of a large or massive RC tear. MATERIALS AND METHODS: Retrospective review of pa - tients with MRIs demonstrating large or massive RC tears (study group-SG) and no tearing (control group-CG) was conducted. Sagittal T1W and coronal PD images of the supraspinatus and infraspinatus muscles from each patient were selected, separated, and placed in random order...
June 2016: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/27163595/no-more-waits-and-delays-streamlining-workflow-to-decrease-patient-time-of-stay-for-image-guided-musculoskeletal-procedures
#16
Yvonne Y Cheung, Eric M Goodman, Tomiwa O Osunkoya
Long wait times limit our ability to provide the right care at the right time and are commonly products of inefficient workflow. In 2013, the demand for musculoskeletal (MSK) procedures increased beyond our department's ability to provide efficient and timely service. We initiated a quality improvement (QI) project to increase efficiency and decrease patient time of stay. Our project team included three MSK radiologists, one senior resident, one technologist, one administrative assistant/scheduler, and the lead technologist...
May 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27150325/emergency-magnetic-resonance-imaging-of-musculoskeletal-trauma
#17
REVIEW
Manickam Kumaravel, William M Weathers
Musculoskeletal (MSK) trauma is commonly encountered in the emergency department. Computed tomography and radiography are the main forms of imaging assessment, but the use of magnetic resonance (MR) imaging has become more common in the emergency room (ER) setting for evaluation of low-velocity/sports-related injury and high-velocity injury. The superior soft tissue contrast and detail provided by MR imaging gives clinicians a powerful tool in the management of acute MSK injury in the ER. This article provides an overview of techniques and considerations when using MR imaging in the evaluation of some of the common injuries seen in the ER setting...
May 2016: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27058462/second-opinion-subspecialty-consultations-in-musculoskeletal-radiology
#18
Majid Chalian, Filippo Del Grande, Rashmi S Thakkar, Sahar F Jalali, Avneesh Chhabra, John A Carrino
OBJECTIVE: The purpose of this article is to evaluate the significance of subspecialty second-opinion consultations for CT and MRI examinations in musculoskeletal (MSK) radiology. MATERIALS AND METHODS: All 3165 MSK CT and MRI examinations referred to one academic institution for second-opinion consultation during a 24-month period were reviewed by three MSK-trained radiologists. Outside and inside reports were compared by two independent MSK radiology fellows using a previously published 5-point scale...
June 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27054846/run-off-computed-tomography-angiography-cta-for-discriminating-the-underlying-causes-of-intermittent-claudication
#19
Alexandra Preuß, Lars-Arne Schaafs, Thomas Werncke, Ingo G Steffen, Bernd Hamm, Thomas Elgeti
AIM: To evaluate run-off computed tomography angiography (CTA) of abdominal aorta and lower extremities for detecting musculoskeletal pathologies and clinically relevant extravascular incidental findings in patients with intermittent claudication (IC) and suspected peripheral arterial disease (PAD). Does run-off CTA allow image-based therapeutic decision making by discriminating the causes of intermittent claudication in patients with suspected peripheral arterial disease PAD? MATERIAL AND METHODS: Retrospective re-evaluation of CTAs performed in patients with acute or chronic intermittent claudication (i...
2016: PloS One
https://www.readbyqxmd.com/read/26957910/sonographic-findings-of-common-musculoskeletal-diseases-in-patients-with-diabetes-mellitus
#20
Minho Park, Ji Seon Park, Sung Eun Ahn, Kyung Nam Ryu, So Young Park, Wook Jin
Diabetes mellitus (DM) can accompany many musculoskeletal (MSK) diseases. It is difficult to distinguish the DM-related MSK diseases based on clinical symptoms alone. Sonography is frequently used as a first imaging study for these MSK symptoms and is helpful to differentiate the various DM-related MSK diseases. This pictorial essay focuses on sonographic findings of various MSK diseases that can occur in diabetic patients.
March 2016: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
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