The carotid body tumor is a rare neoplasm that has generated much literature over the last century, and for which continued controversy exists regarding natural history, biologic behavior, proper technique of excision, and the risk of morbidity and mortality. The present study reviewed a 16-year experience of managing carotid body ...

PURPOSE: We sought to determine whether noninvasive planimetry by magnetic resonance imaging (MRI) is suitably sensitive and reliable for visualizing the mitral valve area (MVA) and for detecting increases in the MVA after percutaneous balloon mitral valvuloplasty (PBMV). MATERIALS AND METHODS: In 8 patients with mitral valve stenosis, planimetry of ...

Carotenoid-based colors are thought to play an important signaling role in many animal taxa. However, little is known about evolutionary changes in carotenoid coloration, especially among closely related species. We used a phylogenetic perspective to examine carotenoid color changes within New World orioles (genus Icterus). Oriole color was quantitatively measured ...

Optimization of pacemaker settings for cardiac resynchronization therapy (CRT) remains challenging and problematic. Several noninvasive methods are offered to customize the programmed parameters for individual patients, but so far only echocardiographic imaging has established itself as an accepted method. The authors examined the value of acoustic cardiography as a fast ...

Utilization of color power Doppler and sonographic contrast agents to basic ultrasound (US) further improve the detection and characterization of abdominal injuries, increasing the diagnostic accuracy and value of US as an important technique in the evaluation of the abdominal trauma. This paper provides an illustrated summary of our clinical ...

Headache occurs in sickle cell disease (SCD), but its characteristics and frequency have not previously been studied. Our aim was to study patterns of headache in adults with SCD and to correlate its presence with blood flow velocities measured by transcranial Doppler (TCD) and with brain magnetic resonance imaging (MRI) ...

A 50-year-old woman had had tenderness of the nail bed of the right thumb for more than 20 years. For the previous 5 or 6 years, she had also had attacks of pain with exposure to cold, and deformity of the right thumb nail plate began to appear. There was ...

Aim of the study was to evaluate the role of echo color/power Doppler and magnetic resonance imaging in the diagnosis of space occupying parotid lesions, in the attempt to establish criteria for differential diagnosis between benign and malignant types. The study population comprised 49 patients (23 male, 26 female), age ...

This study sought to assess the validity of independent, blinded reporting of Laser Doppler Imaging (LDI) prediction of burn wound outcome in children. Two experienced paediatric burn consultants were invited to report on LDI scans performed routinely within 3 days of burn. They were provided with the LDI flux image, ...

OBJECTIVES: To examine the validity of power Doppler ultrasound imaging to identify synovitis, using histopathology as gold standard, and to assess the performance of ultrasound equipments. METHODS: 44 synovial sites in small and large joints, bursae and tendon sheaths were depicted with ultrasound. A synovial biopsy was performed on the ...

PURPOSE: To systematically review the findings of diagnostic value of color duplex ultrasound (US) in the follow-up of endovascular repair of abdominal aortic aneurysms (AAAs). MATERIALS AND METHODS: A search of PubMed and Medline databases for English-language literature was performed to find studies published between 1991 and 2005. Studies comparing ...

OBJECTIVE: The purpose of this presentation is to show the imaging findings of the common and uncommon variants of adenomyosis as seen on sonography and magnetic resonance imaging (MRI). METHODS: A 3-year database search was performed to identify women who had pelvic sonography and pelvic MRI within a 6-month interval. ...

Effective regurgitant orifice area is a useful index of the severity of mitral regurgitation (MR). The calculation of regurgitant orifice area using the proximal isovelocity surface area (PISA) method has some technical limitations. Three-dimensional reconstruction of the MR jet was performed using the Live 3D system on a Sonos 7500 ...

OBJECTIVE: To assess the usefulness of colour power-Doppler transrectal sonography before/after contrast agent in the detection of local recurrence in patients with rising prostate-specific antigen values after radical prostatectomy and to compare with magnetic resonance imaging . MATERIALS AND METHODS: 18 patients with rising prostate-specific antigen values after prostatectomy underwent ...

A patient presented with a painful, pulsating nodosity with marked tenderness on the right side of her neck. Cervical magnetic resonance imaging (MRI) exhibited pathological signal changes in the perivascular tissue of the carotid bifurcation area and around the external carotid artery. Similarly, Doppler sonography revealed an echo-poor wall change ...

Adenomyosis, the heterotopic presence of endometrial glands and stroma within the myometrium, has traditionally been diagnosed by the pathologist in hysterectomy specimens. However, the recent development of high-quality non-invasive techniques such as transvaginal sonography (TVS), magnetic resonance imaging (MRI) and hysteroscopy has renewed interest in diagnosing adenomyosis in the office ...

We came across an interesting case of calcific aortic stenosis in which severity was inaccurately assessed on two-dimensional and Doppler echocardiogram resulting in catheterization. Use of intravenous transpulmonary contrast agent enhanced the Doppler signal enabling better quantification of the transvalvular gradient. Use of contrast in such difficult to image patients ...

Conventional ultrasonography of the kidney is faced by limitations due to the poor contrast of B-mode imaging for parenchymal disease and limited sensitivity of color Doppler for the detection of intracortical capillaries and deep pedicular vessels. Ultrasound contrast agents (USCAs) overcome these limitations, allowing the development of new applications for ...

Given that functional abnormalities of the microcirculation are one of the primary abnormalities in cardiovascular disease pathogenesis, various noninvasive clinical tools have been developed recently to assess the microvascular function, particularly at the skin. The common techniques used to assess cutaneous microvascular function in vivo include capillaroscopy, venous occlusion plethysmography, ...

OBJECTIVE: The aims of this prospective study were to investigate the manifestations of the hemodynamics and morphology of a normal intracranial vertebral artery (VA) and diffusely severe or localized critical vertebral artery stenosis (VAS) on transcranial color Doppler flow imaging (TCDFI) and to discuss the criteria of TCDFI in detecting ...

This study introduces the monitoring system to be established within this project, it aims to determine changes occurring within forested areas, settlement areas and other land use forms located at the peripheral area of Istanbul during consecutive decades. The first phase of the study was completed in 1998 and published, ...

We compared magnetic resonance imaging (MRI), magnetic resonance angiography, and transcranial Doppler ultrasonography as predictors of specific neurocognitive functions in children with sickle cell disease. Participants were 27 children with sickle cell anemia (hemoglobin SS) who were participants in the Stroke Prevention Trial in Sickle Cell Anemia (STOP) and had ...

The contribution that different brain areas make to primate color vision, especially in the macaque, is debated. Here we used functional magnetic resonance imaging in the alert macaque, giving a whole brain perspective of color processing in the healthy brain. We identified color-biased and luminance-biased activity and color-afterimage activity. Color-biased ...

We report a rare appearance of cisterna chyli appearing as a giant cystic structure on routine abdominal ultrasonography (US). Diagnosis was established with color Doppler US and after magnetic resonance imaging. This report describes an unusual appearance of the cisterna chyli that radiologists should be familiar with, especially on the ...

PURPOSE: To prospectively determine if retrospectively electrocardiographic (ECG)-gated multi-detector row computed tomography (CT) with a 16-detector row CT scanner can depict mitral regurgitation and enable quantification of the severity of the disease. MATERIALS AND METHODS: The study had institutional review board approval, and patients gave informed consent. Nineteen patients with ...

OBJECTIVE: The purpose of this study was to review the technical aspects and the clinical applications of intraoperative sonography of the central nervous system (CNS) as well as the characteristic appearances of brain and spine diseases. METHODS: A pictorial review of cases is presented on the basis of the performance ...

PURPOSE: To prospectively use transesophageal magnetic resonance (MR) imaging to determine the morphologic and hemodynamic characteristics of esophageal varices. MATERIALS AND METHODS: The study was approved by the ethics committee. All patients gave written informed consent. Forty-two patients (29 men, 13 women; mean age, 58 years +/- 11 [standard deviation]) ...

AIM: Using sonography, the bicornate and septate uterus as causes of failure of quinacrine sterilization (QS) are explored. Whether QS can be effectively performed on women with a bicornate or septate uterus is a question answered by a presentation of three such cases. METHODS: Three cases presented were part of ...

In synesthesia, certain stimuli ("inducers") may give rise to perceptual experience in additional modalities not normally associated with them ("concurrent"). For example, color-grapheme synesthetes automatically perceive achromatic numbers as colored (e.g., 7 is turquoise). Although synesthetes know when a given color matches the one evoked by a certain number, colors ...

PURPOSE: To determine the presence of testicular microlithiasis in male subjects with pseudoxanthoma elasticum (PXE). MATERIALS AND METHODS: Institutional review board approval was obtained for the prospective and retrospective components of this HIPAA-compliant study. Informed consent was obtained from all patients or their parents. Testicular ultrasonography (US) was performed in ...

OBJECT: Moyamoya is a rare, chronic disease that leads to the progressive narrowing and/or occlusion of the distal internal carotid and proximal cerebral arteries. Chronic cerebral ischemia ensues due to insufficient collateral blood supply. One potential treatment consists of the restoration of regional cerebral blood flow by direct or indirect ...

In this report, we review the advantages, limitations, and optimal utilization of various transthoracic and transesophageal echocardiographic (TTE and TEE) methods used for assessing mitral regurgitation (MR) as published in full-length, peer-reviewed articles since the color Doppler era began in 1984. In addition, comparison is made to other imaging modalities ...

Perigraft seroma is a collection of non-secretory fibrous pseudomembrane surrounding a vascular graft, which is a collection of clear, sterile fluid. Thoracal computed tomography, Magnetic Resonance Imaging, and thoracal ultrasonography have been proposed for diagnosis of this pathology. A consecutive modified Blalock-Taussig (m-BT) shunt complicated by perigraft seroma formation, which ...

OBJECTIVE: We sought to explore the relationship of color Doppler tissue imaging-derived systolic indices of tricuspid valve annular motion and magnetic resonance imaging-derived right ventricular (RV) ejection fraction in patients with congenital heart disease. METHODS: Patients with congenital heart disease who underwent echocardiography and magnetic resonance imaging on the same ...

Color flow Doppler has been useful in diagnosing the presence and severity of mitral regurgitation (MR). We noted a hitherto unreported sign of MR due to flail mitral leaflet: intense local mosaic pattern at the site of the flail leaflet. This sign was seen well in 11 of 14 patients ...

The purpose of this study was to determine if tissue harmonic imaging (THI) produced diagnostic images more frequently than conventional sonography. A prospective study was performed on 33 patients, to compare the diagnostic value of THI with conventional sonography. Each examination was performed using THI (transmit frequency=2.0 MHz, receive frequency=4.0 ...

PURPOSE: The aim of this study was to evaluate the reliability of mitral regurgitation color M-mode regurgitant flow propagation velocity (RFPV) in grading mitral regurgitation (MR). METHODS: We prospectively examined 52 consecutive patients with grades of MR mild in 10 patients, moderate in 19 patients, and severe in 23 patients ...

The aim of this study was to investigate how oculomotor behaviour depends on the availability of colour information in pictorial stimuli. Forty study participants viewed complex images in colour or grey-scale, while their eye movements were recorded. We found two major effects of colour. First, although colour increases the complexity ...

Laser Doppler perfusion imaging (LDI) is an established technique for early assessment of burn depth to help determine a course of treatment. Laser speckle perfusion imaging (LSPI) is an alternative laser based, non-invasive perfusion monitoring technique that offers rapid and high resolution images of tissue. We have evaluated the ability ...

The purpose of this study was to evaluate the colors of resin composites used for the layering technique, as well as the translucency at various thickness. For the purpose of calculating the translucency parameter (TP), black and white backings were used to evaluate the CIELAB parameters of Filtek Supreme (3M) ...

Adenomyosis is a common but under-diagnosed gynecologic condition due to hypertrophied myometrial smooth muscle containing ectopic endometrial glands that is associated with pelvic pain, menorrhagia, and an enlarged uterus. This is an overview of the sonographic and magnetic resonance imaging features that have been developed in the diagnosis of adenomyosis ...

Placenta percreta is still a life threatening condition due to the risk of excessive bleeding. Furthermore, it confers a considerable risk of the patient losing her uterus. An improved diagnosis including assessment of the depth of myometrial and serosal invasion is now available by color Doppler imaging, making the planning ...

We describe the use of serial transcranial Doppler studies to evaluate neurovascular disease in three girls presenting with acute stroke due to primary cerebral vasculitis (n = 2) and West Nile vasculitis (n = 1). Correlation of abnormal findings on transcranial Doppler sonography was compared with those of MR angiography ...

Fifty-two women with regular menses were enrolled in the study. The patients were not allowed to use non-steroidal anti-inflammatory drugs within 24 h of any examination. All patients were examined during the mid-luteal phase (6-9 days after ovulation, according to previous ultrasound record). Power Doppler energy levels were classified into ...

OBJECTIVES: We sought to assess the relationship between infarct status and systolic contractile function of papillary muscle (PM) for patients with inferior wall myocardial infarction (MI). METHODS: Peak systolic velocity (V) of posteromedial PM, systolic strain (epsilon) of posteromedial PM (epsilonPM), V of adjacent inferior wall, and of adjacent inferior ...

OBJECTIVE: The purpose of this presentation is to illustrate the normal sonographic anatomy of the penis and various imaging manifestations of penile trauma. METHODS: Penile trauma cases were collected and reviewed retrospectively from our archive. RESULTS: The normal sonographic anatomy of the penis and various pathologic conditions of patients with ...

The incidence of placenta accreta should rise steadily over the next century as the frequency of Cesarean sections and advanced maternal age, both independent risk factors, increases. Patients who are at risk should be identified before an ultrasound examination and the characteristic findings searched for. In the first trimester, these ...

The qualitative and quantitative changes in the structure of the renal corpuscle allow the assessment of the glomerular involvement degree, defining each type of glomerulonephritis. Recently, several works dedicated to glomerulonephritis focus on the quantitative investigation, achieved by digital (numerical) image processing, where the identification of the interest elements is ...

PURPOSE: To compare value of current diagnostic strategies in assessment of changes in posttest probability of ovarian cancer when menopausal status and combination and sequence of diagnostic imaging tests are considered. MATERIALS AND METHODS: Prevalence of ovarian cancer according to menopausal status in women with an ovarian mass and performance ...

OBJECTIVE: The role of intraoperative sonography is to detect and prompt revision of technical defects that may adversely affect results. Our objective is to describe the technique and illustrate normal and abnormal findings in intraoperative sonography of mesenteric revascularization. CONCLUSION: An abnormality on a gray-scale image associated with hemodynamic changes ...