• comprises
  • 2. A method as in claim 1 , wherein advancing the biopsy device comprises advancing it through a nostril of the head and then through the opening into the paranasal sinus. (google.com)
  • 3. A method as in claim 2 , wherein advancing the biopsy device comprises advancing it through a curved tubular guide disposed in the nostril. (google.com)
  • An integrated radiation therapy process comprises acquiring first objective target data related to a parameter of a target within a patient by periodically locating a marker positioned within the patient using a localization modality. (google.ca)
  • 5. The method of claim 1 wherein the localization modality comprises determining locations of the marker using a non-ionizing energy. (google.ca)
  • 10 . The irrigated ablation electrode assembly of claim 7 wherein the proximal portion comprises a material which is electrically nonconductive, and wherein the external surface of the proximal portion and the external electrode surface of the electrode at the distal portion meet at an intersection, and wherein the at least one proximal passageway is configured to direct a fluid flow through the outlet toward a region adjacent the intersection. (google.de)
  • computed tomography
  • 1-3 Intrafraction motion of cancer targets due to breathing now can be reduced by patient-responsive breath hold techniques, 4 patient mouthpiece active breathing coordination, 5 respiration-correlated computed tomography, 6 or image-guided tracking of fiducials implanted within and around a moving tumor. (jove.com)
  • catheters
  • This may be useful for the applications above and also for confirmation of targeting for placement of ventricular catheters, biopsies, or deep brain stimulation electrodes. (wikipedia.org)
  • At the extreme of this, very small transducers can be mounted on small diameter catheters and placed into blood vessels to image the walls and disease of those vessels. (wikipedia.org)
  • tissue
  • removing the biopsy device from the paranasal sinus to remove cut tissue. (google.com)
  • In this work, the authors develop a simulation tool to help predict these different experimental responses using 3D heterogeneous tissue models based on the subject CT images. (stanford.edu)
  • The most well-known type is a B-mode image, which displays the acoustic impedance of a two-dimensional cross-section of tissue. (wikipedia.org)
  • Other types of image can display blood flow, motion of tissue over time, the location of blood, the presence of specific molecules, the stiffness of tissue, or the anatomy of a three-dimensional region. (wikipedia.org)
  • needle
  • The invention describes a system, method, and means for an MRI transseptal needle that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter to generate high-resolution images and can enable real-time active needle tracking during MRI guided transseptal. (google.fr)
  • prostate
  • Histopathological studies of radical prostatectomy (RP) specimens show that as much as 21% of all PCa are found in this anterior region of the prostate gland ( 1 ) . (pubmedcentralcanada.ca)
  • Anteriorly located PCA is often missed on physical exam because of its anatomical positioning farthest from the surface of the prostate gland adjacent to the rectal wall, thereby delaying suspicion of cancer based on clinical evaluation ( 2 - 4 ) . (pubmedcentralcanada.ca)
  • Aug 10, 2017 - In the featured translational article in the August issue of The Journal of Nuclear Medicine, researchers at the University of Michigan demonstrate the potential of a new PET tracer, Carbon-11 labeled sarcosine, for imaging prostate cancer, and set the stage for its possible use in monitoring other cancers. (snmmi.org)
  • Prostate cancer is diagnosed by biopsy. (wikipedia.org)
  • tumor
  • Neuroendocrine Tumor Imaging With (68)Ga-DOTA-NOC: Physiologic and Benign Variants. (biomedsearch.com)
  • Imaging (abdominal ultrasonography, CT, and MRI) revealed that the tumor had spread to the mesosigmoid and the superior mesentery. (biomedsearch.com)
  • We performed a comprehensive assessment of the imaging characteristics of this rare tumor to determine whether there are features that suggest the diagnosis. (biomedsearch.com)
  • Intra-operative MRI is used to guide brain tumor surgery as well as placement of deep brain stimulation electrodes and interstitial laser thermal therapy. (wikipedia.org)
  • lung
  • Preliminary measurements gathered from patient's CT scans suggest that segmented images can be used for accurate analysis of total lung volume and volumes of regional lung parenchyma. (spie.org)
  • yield
  • Patients with anterior tumors have significantly lower yield on biopsy when compared to those that are posterior, both in terms of number of cores positive and length of cancer identified per core ( 1 ) . (pubmedcentralcanada.ca)
  • The yield rate of biopsies in small nodules is reported to be between 33-50% in tumors smaller than 3 cm. (wikipedia.org)
  • diagnosis
  • Aug 18, 2017 - The American Society of Nuclear Cardiology (ASNC) and the Society of Nuclear Medicine and Molecular Imaging (SNMMI) have issued a joint consensus document on the role of F-18-FDG PET/CT in the diagnosis and treatment of cardiac sarcoidosis. (snmmi.org)
  • Also despite the large amount of data in CT scans, MR scans and other digital-based imaging, there are many disease entities in which the classic diagnosis is obtained by plain radiographs. (wikipedia.org)
  • clinical
  • Medical imaging is the technique and process of creating visual representations of the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology). (wikipedia.org)
  • angiography
  • Fluoroscopy and angiography are special applications of X-ray imaging, in which a fluorescent screen and image intensifier tube is connected to a closed-circuit television system. (wikipedia.org)
  • often
  • Moreover, these patients often require multiple biopsies, with increasing cumulative risk of procedure-related morbidities such as bleeding, urinary retention, infection, and occasionally urosepsis ( 6 , 7 ) . (pubmedcentralcanada.ca)
  • Medical imaging is often perceived to designate the set of techniques that noninvasively produce images of the internal aspect of the body. (wikipedia.org)
  • objective
  • In other embodiments, the first objective target data can be acquired using a first localization modality that uses a first energy type to identify the marker and the second objective target data can be obtained using a second localization modality that uses a second energy. (google.ca)
  • pathology
  • The ability to quantify particular imaging features of specific pathology and accurately assess progression or response to treatment with current imaging tools is relatively poor. (spie.org)
  • lower
  • It provides images in real-time, it is portable and can be brought to the bedside, it is substantially lower in cost, and it does not use harmful ionizing radiation. (wikipedia.org)
  • patient
  • 8. The method of 1 , further comprising (a) obtaining images of the target and of the marker and (b) determining coordinates of the marker and the target in a reference frame external to the patient before acquiring the first target data. (google.ca)
  • Stereotactic body radiotherapy (SBRT) distinguishes itself by necessitating more rigid patient immobilization, accounting for respiratory motion, intricate treatment planning, on-board imaging, and reduced number of ablative radiation doses to cancer targets usually refractory to chemotherapy and conventional radiation. (jove.com)
  • an image is formed based on which rays pass through (and are detected) versus those that are absorbed or scattered in the patient (and thus are not detected). (wikipedia.org)
  • The advantage of intra-procedural imaging is that the patient and the diaphragm are in exactly the same position during 2D/3D imaging and the actual biopsy. (wikipedia.org)
  • rays
  • In the two latest systems, the X-rays strike sensors that converts the signals generated into digital information, which is transmitted and converted into an image displayed on a computer screen. (wikipedia.org)
  • These radiocontrast agents strongly absorb or scatter X-rays, and in conjunction with the real-time imaging, allow demonstration of dynamic processes, such as peristalsis in the digestive tract or blood flow in arteries and veins. (wikipedia.org)
  • techniques
  • Lengths of cancer in the most involved core were also compared between the two biopsy techniques employed. (pubmedcentralcanada.ca)
  • Measurement and recording techniques which are not primarily designed to produce images, such as electroencephalography (EEG), magnetoencephalography (MEG), electrocardiography (ECG), and others represent other technologies which produce data susceptible to representation as a parameter graph vs. time or maps which contain data about the measurement locations. (wikipedia.org)
  • The term noninvasive is used to denote a procedure where no instrument is introduced into a patient's body which is the case for most imaging techniques used. (wikipedia.org)
  • Many of the techniques developed for medical imaging also have scientific and industrial applications. (wikipedia.org)
  • different
  • The segmented images were smoothed by a morphological close operation using spherical elements of different sizes. (spie.org)
  • Many different types of images can be formed using sonographic instruments. (wikipedia.org)
  • toward
  • directing the antenna system toward the intracranial region of interest in response to the signals received from the antenna. (google.fr)
  • system
  • Medical images are stored digitally in the picture archiving and communication system (PACS) where they can be viewed by all members of the healthcare team within the same health system and compared later on with future imaging exams. (wikipedia.org)