Ultrasound Sample Clauses

Ultrasound. Ultrasound (US) based imaging methodologies have been wildly adopted to study VC in dialysis patients to assess superficial vessels, such as the femoral and carotid arteries [319]. Ultrasound involves the transmission of high frequency sound waves (2 to 10 MHz) through an anatomic site of interest followed by conversion of echoes into electrical impulses, producing 2-dimensional images [320]. Ultrasound studies rely on the availability of the tool, the inexpensive nature of the measurements and the ease of identification of superficial vessels such as the carotid and femoral arteries. Ultrasound- based methods, however, only provide qualitative and semi-quantitative assessment of VC [321, 322]. The distinction between intimal and medial calcification is difficult and results are, for the most part, based on subjective interpretation [323]. However, the results generated with this methodology appear to be a reliable means for VC screening and outcome prediction. The advantages of US are that it is a safe method with no radiation exposure, and is relatively low cost, moreover, it permits assessment of calcification of superficial vessels such as carotid and femoral arteries [324]. It is however operator dependent and only a qualitative method [324].
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Ultrasound. Muscle morphology was acquired through B-mode ultrasound images (model LOGIQ S7 Expert, General Electric, GE Healthcare, USA), on the dominant side of the participants, defined as the leg chosen to kick a ball (26). All images were acquired by an evaluator with 700 hours of experience in image acquisition and image processing was performed by an evaluator with 312 hours of experience in image analysis. The procedures for acquiring images for the cross-sectional area (CSA) were conducted as described by Xxxxxxx et al. (21). This technique for assessing CSA was validated by Xxxxxxxx et al (29) by comparing the extended field-of-view ultrasound method with computed tomography (ICC: 0.95 - 0.99). First, the greater trochanter and the lateral epicondyle of the femur were identified and the femur length was measured, then, starting from the proximal region of the thigh, points 40, 50, 60, and 70% of the femur length were identified. Thus, the participants' anterior thigh region was marked in each of these percentages for image acquisition. After 5 minutes of rest on a stretcher (5), two images were acquired in each of the percentages in the extended view mode with a 5 cm transducer. The settings used were: frequency of 10 MHz, image capture depth of 7 cm, and gain of 60 dB. Water-based gel was applied to the transducer head to achieve acoustic coupling, and extra care was taken to avoid muscle strain. Rectus femoris and vastus lateralis CSA were manually demarcated using ImageJ public domain software (V.1.52; National Institute of Health, USA). The average of the four percentages for each muscle represented the CSA for the statistical analysis. For muscle architecture, the same settings reported above were used. Then, the transducer was positioned longitudinally to the femur, oriented parallel to the muscle fascicles, and perpendicular to the skin (15). Two images were acquired at 50% of the femur length for the rectus femoris and vastus lateralis. Muscle thickness was determined as the distance between the muscle's deepest and most superficial aponeurosis (6). For the acquisition of muscle thickness, five measurements were taken along the image (one at each end, one central, and two intermediates), then the average between them was calculated. The fascicle length was estimated using the Fini and Komi equation (13) and understood as the length of the fascicular path between the superficial and deep aponeurosis. The pennation angle was defined as the angle betwee...
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Ultrasound. ‌ Ultrasound measurements will be performed at baseline (pre-injection and immediately post- injection), week 4 (pre-touch up), and week 24. A single ultrasound measurement will be taken on each subject’s left and right cheek, at neutral expression and at maximum smiling. The placement of the ultrasound probe needs to be at the same location of the product injection and for both visits to ensure consistent assessment. Ultrasound measurements will be performed using an 18 MHz GE Venue Fit or 42 MHz Vevo® MD ultrasonic transducer interfaced to a system. The probe will have a standard setting of gain, depth, and velocity scale to assess placement/depth of filler, size of filler aggregates, and vascularity around aggregates.
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Ultrasound. From time to time, an examination with the use of an ultrasound device will occur. This examination involves the use of a form of energy (sound waves) which at high energy levels may produce heat and tissue damage. At the extremely low energy levels utilized in diagnostic ultrasounds no adverse effects have been observed.
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Ultrasound assisted ionic liquid extraction
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Ultrasound. Ultrasound is not useful in assessment of lesion size and should not be used as a method of measurement. If new lesions are identified by ultrasound in the course of the study, confirmation by CT is advised.
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Ultrasound. The sonographic differential diagnosis of a pelvic masses based on their location, internal consistency, size and definition of borders is presented. Besides separating pelvic masses into the conventional categories of cystic, solid, complex and grayscale sonographic features of a pelvic mass can be accustomed to subcategorize these masses into a more useful vary diagnoses. The information of sonographic can be effectively utilized for establishing differential diagnoses of pelvic masses. Many pelvic masses, for example, dermoid cysts diagnostic more than one sonographic appearance, therefore, had to be considered in more than one diagnostic category (Benacerraf al., 2015).
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Ultrasound. Distributors who sell Ultrasound Products may not appoint Sub-Distributors for Ultrasound Products.
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Ultrasound. On B-mode ultrasound fibroids appear as discrete, globular structures with well defined circumference (Figure 4). However they can have a variety of appearances depending on the ratio of connective tissue to smooth muscle and the presence and type of degeneration. Bizarre appearances can occur after fibroid degeneration when they can contain hypoechoic areas or calcifications. High resolution transvaginal ultrasound can identify fibroids as small as 4 – 5mm which are commonly asymptomatic (Xxxxxx 1998). The high diagnostic value of 2D transvaginal ultrasound was confirmed by Xxxxxxx et al. in a study of 106 women scheduled for hysterectomy. The positive predictive value of ultrasound was 96% while ultrasound was accurate to within 2 mm of the true fibroid diameter as measured at histopathology (Dueholm et al. 2002). It should be noted that the performance of ultrasound deteriorated when the uterine volume was large secondary to the presence of several tumours. This may be due to increasing distance between the transvaginal probe and the fibroid under examination. Despite its high sensitivity 2D grey scale ultrasound performs poorly in distinguishing between intramural and submucous fibroids as it is not always easy to discern the relationship between fibroid and endometrial cavity. Xxxxxx et al. showed that 2D transvaginal ultrasound misclassified 36% of fibroids when compared to hysteroscopic findings. Enhancing the image with the infusion of saline improved performance of 2D ultrasound and misclassification dropped to 2.8% (Xxxxxx et al. 1993). The enhancing effect of saline infusion for the diagnostic ability of 2D ultrasound was confirmed by Xxxxxxxxx et al who compared ultrasonic findings to those at the time of surgery (Xxxxxxxxx et al. 1995). They reported 100% sensitivity and specificity for sonohysterography and less than 2 mm difference between sonohysterography and direct evaluation after surgery. Other groups have reported similar findings (Xxxxxxx et al. 2001) The high sensitivity of transvaginal ultrasound poses new problems for practitioners. Fibroids are often an incidental finding as tumours 5 mm in diameter do not cause symptoms. However they may become symptomatic if they grow to over 20 mm diameter (Wegienka et al. 2003). Given the dearth of information regarding the clinical course of these tumours with only two longitudinal studies of fibroid natural history published it is currently difficult for clinicians presenting a woman with an...
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Related to Ultrasound

  • Diagnostic procedures to aid the Provider in determining required dental treatment.

  • Radiation Therapy/Chemotherapy Services This plan covers chemotherapy and radiation services. This plan covers respiratory therapy services. When respiratory services are provided in your home, as part of a home care program, durable medical equipment, supplies, and oxygen are covered as a durable medical equipment service.

  • Therapies Acupuncture and acupuncturist services, including x-ray and laboratory services. • Biofeedback, biofeedback training, and biofeedback by any other modality for any condition. • Recreational therapy services and programs, including wilderness programs. • Services provided in any covered program that are recreational therapy services, including wilderness programs, educational services, complimentary services, non- medical self-care, self-help programs, or non-clinical services. Examples include, but are not limited to, Tai Chi, yoga, personal training, meditation. • Computer/internet/social media based services and/or programs. • Recreational therapy. • Aqua therapy unless provided by a physical therapist. • Maintenance therapy services unless it is a habilitative service that helps a person keep, learn or improve skills and functioning for daily living. • Aromatherapy. • Hippotherapy. • Massage therapy rendered by a massage therapist. • Therapies, procedures, and services for the purpose of relieving stress. • Physical, occupational, speech, or respiratory therapy provided in your home, unless through a home care program. • Pelvic floor electrical and magnetic stimulation, and pelvic floor exercises. • Educational classes and services for speech impairments that are self-correcting. • Speech therapy services related to food aversion or texture disorders. • Exercise therapy. • Naturopathic, homeopathic, and Christian Science services, regardless of who orders or provides the services. • Eye exercises and visual training services. • Lenses and/or frames and contact lenses for members aged nineteen (19) and older. • Vision hardware purchased from a non-network provider. • Non-collection vision hardware. • Lenses and/or frames and contact lenses unless specifically listed as a covered healthcare service.

  • Anesthesia Services This plan covers general and local anesthesia services received from an anesthesiologist when the surgical procedure is a covered healthcare service. This plan covers office visits or office consultations with an anesthesiologist when provided prior to a scheduled covered surgical procedure.

  • Vaccination and Inoculation ‌ (a) The Employer agrees to take all reasonable precautions to limit the spread of infectious diseases among employees, including in-service seminars for employees. Where the Employer or Occupational Health and Safety Committee identifies high risk areas which expose employees to infectious or communicable diseases for which there are protective immunizations available, such immunizations shall be provided at no cost to the employee. The Committee may consult with the Medical Health Officer. Where the Medical Health Officer identifies such a risk, the immunization shall also be provided at no cost. The Employer shall provide Hepatitis B vaccine, free of charge, to those employees who may be exposed to bodily fluids or other sources of infection. (b) An employee may be required by the Employer, at the request of and at the expense of the Employer, to take a medical examination by a physician of the employee's choice. Employees may be required to take skin tests, x-ray examination, vaccination, and other immunization (with the exception of a rubella vaccination when the employee is of the opinion that a pregnancy is possible), unless the employee's physician has advised in writing that such a procedure may have an adverse effect on the employee's health.

  • Speech Therapy This plan covers speech therapy services when provided by a qualified licensed • loss of speech or communication function; or • impairment as a result of an acute illness or injury, or an acute exacerbation of a chronic disease. Speech therapy services must relate to: • performing basic functional communication; or • assessing or treating swallowing dysfunction. See Autism Services when speech therapy services are rendered as part of the treatment of autism spectrum disorder. The amount you pay and any benefit limit will be the same whether the services are provided for habilitative or rehabilitative purposes.

  • Outpatient Dental Anesthesia Services This plan covers anesthesia services received in connection with a dental service when provided in a hospital or freestanding ambulatory surgical center and: • the use of this is medically necessary; and • the setting in which the service is received is determined to be appropriate. This plan also covers facility fees associated with these services. This plan covers dental care for members until the last day of the month in which they turn nineteen (19). This plan covers services only if they meet all of the following requirements: • listed as a covered dental care service in this section. The fact that a provider has prescribed or recommended a service, or that it is the only available treatment for an illness or injury does not mean it is a covered dental care service under this plan. • dentally necessary, consistent with our dental policies and related guidelines at the time the services are provided. • not listed in Exclusions section. • received while a member is enrolled in the plan. • consistent with applicable state or federal law. • services are provided by a network provider.

  • Durable Medical Equipment (DME), Medical Supplies, Prosthetic Devices, Enteral Formula or Food, and Hair Prosthesis (Wigs) This plan covers durable medical equipment and supplies, prosthetic devices and enteral formula or food as described in this section. DME is equipment which: • can withstand repeated use; • is primarily and customarily used to serve a medical purpose; • is not useful to a person in the absence of an illness or injury; and • is for use in the home. DME includes supplies necessary for the effective use of the equipment. This plan covers the following DME: • wheelchairs, hospital beds, and other DME items used only for medical treatment; and • replacement of purchased equipment which is needed due to a change in your medical condition or if the device is not functional, no longer under warranty, or cannot be repaired. DME may be classified as a rental item or a purchased item. In most cases, this plan only pays for a rental DME up to our allowance for a purchased DME. Repairs and supplies for rental DME are included in the rental allowance. Medical supplies are consumable supplies that are disposable and not intended for re- use. Medical supplies require an order by a physician and must be essential for the care or treatment of an illness, injury, or congenital defect. Covered medical supplies include: • essential accessories such as hoses, tubes and mouthpieces for use with medically necessary DME (these accessories are included as part of the rental allowance for rented DME); • catheters, colostomy and ileostomy supplies, irrigation trays and surgical dressings; and • respiratory therapy equipment. This plan covers diabetic equipment and supplies for the treatment of diabetes in accordance with R.I. General Law §27-20-30. Covered diabetic equipment and supplies include: • therapeutic or molded shoes and inserts for custom-molded shoes for the prevention of amputation; • blood glucose monitors including those with special features for the legally blind, external insulin infusion pumps and accessories, insulin infusion devices and injection aids; and • lancets and test strips for glucose monitors including those with special features for the legally blind, and infusion sets for external insulin pumps. The amount you pay differs based on whether the equipment and supplies are bought from a durable medical equipment provider or from a pharmacy. See the Summary of Pharmacy Benefits and the Summary of Medical Benefits for details. Coverage for some diabetic equipment and supplies may only be available from either a DME provider or from a pharmacy. Visit our website to determine if this is applicable or call our Customer Service Department. Prosthetic devices replace or substitute all or part of an internal body part, including contiguous tissue, or replace all or part of the function of a permanently inoperative or malfunctioning body part and alleviate functional loss or impairment due to an illness, injury or congenital defect. Prosthetic devices do not include dental prosthetics. This plan covers the following prosthetic devices as required under R.I. General Law § 27-20-52: • prosthetic appliances such as artificial limbs, breasts, larynxes and eyes; • replacement or adjustment of prosthetic appliances if there is a change in your medical condition or if the device is not functional, no longer under warranty and cannot be repaired; • devices, accessories, batteries and supplies necessary for prosthetic devices; • orthopedic braces except corrective shoes and orthotic devices used in connection with footwear; and • breast prosthesis following a mastectomy, in accordance with the Women’s Health and Cancer Rights Act of 1998 and R.I. General Law 27-20-29. The prosthetic device must be ordered or provided by a physician, or by a provider under the direction of a physician. When you are prescribed a prosthetic device as an inpatient and it is billed by a provider other than the hospital where you are an inpatient, the outpatient benefit limit will apply. Enteral formula or food is nutrition that is absorbed through the intestinal tract, whether delivered through a feeding tube or taken orally. Enteral nutrition is covered when it is the sole source of nutrition and prescribed by the physician for home use. In accordance with R.I. General Law §27-20-56, this plan covers enteral formula taken orally for the treatment of: • malabsorption caused by Crohn’s Disease; • ulcerative colitis; • gastroesophageal reflux; • chronic intestinal pseudo obstruction; and • inherited diseases of amino acids and organic acids. Food products modified to be low protein are covered for the treatment of inherited diseases of amino acids and organic acids. Preauthorization may be required. The amount that you pay may differ depending on whether the nutrition is delivered through a feeding tube or taken orally. When enteral formula is delivered through a feeding tube, associated supplies are also covered. This plan covers hair prosthetics (wigs) worn for hair loss suffered as a result of cancer treatment in accordance with R.I. General Law § 27-20-54 and subject to the benefit limit and copayment listed in the Summary of Medical Benefits. This plan will reimburse the lesser of the provider’s charge or the benefit limit shown in the Summary of Medical Benefits. If the provider’s charge is more than the benefit limit, you are responsible for paying any difference. This plan covers Early Intervention Services in accordance with R.I. General Law §27- 20-50. Early Intervention Services are educational, developmental, health, and social services provided to children from birth to thirty-six (36) months. The child must be certified by the Rhode Island Department of Human Services (DHS) to enroll in an approved Early Intervention Services program. Services must be provided by a licensed Early Intervention provider and rendered to a Rhode Island resident. Members not living in Rhode Island may seek services from the state in which they reside; however, those services are not covered under this plan. Early Intervention Services as defined by DHS include but are not limited to the following: • speech and language therapy; • physical and occupational therapy; • evaluation; • case management; • nutrition; • service plan development and review; • nursing services; and • assistive technology services and devices.

  • Prosthodontics We Cover prosthodontic services as follows:

  • Hepatitis B Vaccine Where the Hospital identifies high risk areas where employees are exposed to Hepatitis B, the Hospital will provide, at no cost to the employees, a Hepatitis B vaccine.