Browsing Harvard Medical School by Title
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Diffractionless beam in free space with adiabatic changing refractive index in a single mode tapered slab waveguide
(Optical Society of America, 2009) -
Diffuse Alveolar Hemorrhage due to Acute Mitral Valve Regurgitation
(Hindawi Publishing Corporation, 2013)Diffuse alveolar hemorrhage (DAH) can be caused by several etiologies including vasculitis, drug exposure, anticoagulants, infections, mitral valve stenosis, and regurgitation. Chronic mitral valve regurgitation (MR) has ... -
Diffuse Large B-Cell Lymphoma in Human T-Lymphotropic Virus Type 1 Carriers
(Hindawi Limited, 2011-11-09)We describe the clinical and pathological characteristics of seven patients who were human T-lymphotropic virus type 1 (HTLV-1) carriers and had a pathological diagnosis of de novo diffuse large B-cell lymphoma. Interestingly, ... -
Diffuse Large B-Cell Lymphoma in the Era of Precision Oncology: How Imaging Is Helpful
(The Korean Society of Radiology, 2017)Diffuse large B cell lymphoma (DLBCL) is the most common histological subtype of Non-Hodgkin's lymphoma. As treatments continues to evolve, so do imaging strategies, and positron emission tomography (PET) has emerged as ... -
Diffuse Optical Tomography Activation in the Somatosensory Cortex: Specific Activation by Painful vs. Non-Painful Thermal Stimuli
(Public Library of Science, 2009)Background: Pain is difficult to assess due to the subjective nature of self-reporting. The lack of objective measures of pain has hampered the development of new treatments as well as the evaluation of current ones. ... -
Diffusion and Perfusion: The Keys to Fat Grafting
(Wolters Kluwer Health, 2014)Background: Fat grafting is now widely used in plastic surgery. Long-term graft retention can be unpredictable. Fat grafts must obtain oxygen via diffusion until neovascularization occurs, so oxygen delivery may be the ... -
Diffusion imaging of mild traumatic brain injury in the impact accelerated rodent model: A pilot study
(Informa UK Limited, 2017-06-19)PRIMARY OBJECTIVE: There is a need to understand pathologic processes of the brain following mild traumatic brain injury (mTBI). Previous studies report axonal injury and oedema in the first week after injury in a rodent ... -
Diffusion MR Tractography of the Heart
(BioMed Central, 2009)Histological studies have shown that the myocardium consists of an array of crossing helical fiber tracts. Changes in myocardial fiber architecture occur in ischemic heart disease and heart failure, and can be imaged ... -
Diffusion MRI of Structural Brain Plasticity Induced by a Learning and Memory Task
(Public Library of Science, 2011)Background: Activity-induced structural remodeling of dendritic spines and glial cells was recently proposed as an important factor in neuroplasticity and suggested to accompany the induction of long-term potentiation ... -
Diffusion MRI quality control and functional diffusion map results in ACRIN 6677/RTOG 0625: A multicenter, randomized, phase II trial of bevacizumab and chemotherapy in recurrent glioblastoma
(D.A. Spandidos, 2015)Functional diffusion mapping (fDM) is a cancer imaging technique that quantifies voxelwise changes in apparent diffusion coefficient (ADC). Previous studies have shown value of fDMs in bevacizumab therapy for recurrent ... -
Diffusion MRI Tractography of the Developing Human Fetal Heart
(Public Library of Science, 2013)Objective: Human myocardium has a complex and anisotropic 3D fiber pattern. It remains unknown, however, when in fetal life this anisotropic pattern develops and whether the human heart is structurally fully mature at ... -
Diffusion MRI Tractography of the Human Heart \(In\) \(Vivo\) at End-Diastole and End-Systole
(BioMed Central, 2012)Diffusion Tensor MRI (DTI) of the human heart \(in\) \(vivo\) has to date been performed in 2D and at a single phase of the cardiac cycle. Here we perform 3D tractography of the human heart \(in\) \(vivo\) at both end ... -
Diffusion of Intraperitoneal Chemotherapy in Women with Advanced Ovarian Cancer in Community Settings 2003–2008: The Effect of the NCI Clinical Recommendation
(Frontiers Media S.A., 2014)Purpose: A 2006 National Cancer Institute clinical announcement recommended the use of combined intravenous (IV) and intraperitoneal (IP) chemotherapy over IV chemotherapy alone for women with International Federation of ... -
Diffusion Spectrum Imaging Shows the Structural Basis of Functional Cerebellar Circuits in the Human Cerebellum In Vivo
(Public Library of Science, 2009)Background: The cerebellum is a complex structure that can be affected by several congenital and acquired diseases leading to alteration of its function and neuronal circuits. Identifying the structural bases of cerebellar ... -
Diffusion tensor and volumetric magnetic resonance imaging using an MR-compatible hand-induced robotic device suggests training-induced neuroplasticity in patients with chronic stroke
(D.A. Spandidos, 2013)Stroke is the third leading cause of mortality and a frequent cause of long-term adult impairment. Improved strategies to enhance motor function in individuals with chronic disability from stroke are thus required. Post-stroke ... -
Diffusion Tensor Imaging and Its Application to Neuropsychiatric Disorders
(Ovid Technologies (Wolters Kluwer Health), 2002)Magnetic resonance diffusion tensor imaging (DTI) is a new technique that can be used to visualize and measure the diffusion of water in brain tissue; it is particularly useful for evaluating white matter abnormalities. ... -
Diffusion tensor imaging in acute-to-subacute traumatic brain injury: a longitudinal analysis
(BioMed Central, 2016)Background: Diffusion tensor imaging (DTI) may have prognostic utility in patients with traumatic brain injury (TBI), but the optimal timing of DTI data acquisition is unknown because of dynamic changes in white matter ... -
Diffusion Tensor Imaging in Patients with Glioblastoma Multiforme Using the Supertoroidal Model
(Public Library of Science, 2016)Purpose Diffusion Tensor Imaging (DTI) is a powerful imaging technique that has led to improvements in the diagnosis and prognosis of cerebral lesions and neurosurgical guidance for tumor resection. Traditional tensor ... -
A diffusion tensor imaging study of the anterior limb of the internal capsule in schizophrenia
(Elsevier BV, 2010)Introduction—Frontal-subcortical cognitive and limbic feedback loops modulate higher cognitive functioning. The final step in these feedback loops is the thalamo-cortical projection through the anterior limb of the internal ... -
Diffusion Tensor Imaging, Structural Connectivity, and Schizophrenia
(Hindawi Publishing Corporation, 2011)A fundamental tenet of the “disconnectivity” theories of schizophrenia is that the disorder is ultimately caused by abnormal communication between spatially disparate brain structures. Given that the white matter fasciculi ...