Abstract:
:The use of microbubble contrast greatly enhances the ability of ultrasound to delineate structures and therefore aid in diagnosis. Ultrasound microbubble contrast agents are composed of low-solubility gas encapsulated in a biomaterial shell. These agents use the physics of ultrasound imaging to effectively identify and characterize focal hepatic and renal lesions. Not only can contrast agents be used to evaluate multiple phases of lesion contrast enhancement, but ultrasound also allows for real-time study of enhancement patterns. The short half-life and intravascular location of the microbubbles allows for multiple, sequential administrations of contrast to observe enhancement of lesions in different sites. Furthermore, the ability to perform imaging without ionizing radiation and the lack of nephrotoxicity make contrast-enhanced ultrasound an ideal evaluation method for patients who need serial surveillance or in whom imaging options are severely limited because of renal insufficiency. These techniques are widely used in many countries for diagnostic radiological purposes; however, the lack of both Food and Drug Administration approval and reimbursement for noncardiac hospital-based imaging has delayed widespread use in the United States. Despite these limitations, continued research and innovations in ultrasound contrast make it essential to have a working knowledge of the typical enhancement patterns of frequently seen hepatic and renal lesions as these techniques offer an alternative option for contrast imaging.
journal_name
Ultrasound Qjournal_title
Ultrasound quarterlyauthors
Denham SL,Alexander LF,Robbin MLdoi
10.1097/RUQ.0000000000000182subject
Has Abstractpub_date
2016-06-01 00:00:00pages
116-25issue
2eissn
0894-8771issn
1536-0253pii
00013644-201606000-00004journal_volume
32pub_type
杂志文章,评审abstract:BACKGROUND:There have been very few small studies or case reports in the literature considering noninvasive postmortem imaging as supplement to autopsy, especially in fetuses with skeletal dysplasias. Apert syndrome accounts for 4.5% of all patients with craniosynostotic syndromes. It is classically characterized by th...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0b013e3181fe7484
更新日期:2010-12-01 00:00:00
abstract::There has been a global increase in the rate of cesarean delivery during the last 30 years. As a result, many women of reproductive age now have uterine scars. Well-recognized obstetric and gynecologic consequences include cesarean scar pregnancy, scar dehiscence or rupture, and scar endometriosis. More recently, abno...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0000000000000075
更新日期:2015-03-01 00:00:00
abstract::The study aimed to investigate the effectiveness of the vascularization index (VI) obtained using superb microvascular imaging (SMI) technique in the diagnosis of Hashimoto thyroiditis (HT). The thyroid glands of 80 patients with HT and 107 healthy, asymptomatic participants were examined using SMI. The thyroid parenc...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000430
更新日期:2019-09-01 00:00:00
abstract::This study was to evaluate the correlation between birth weight and the distance between distal rectal pouch and perineum (P-P distance) and to determine a cutoff value for P-P distance to diagnose low-type imperforate anus in neonates with low-birth weight (LBW).We included 15 neonates with LBW (mean weight, 2012 ± 4...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000329
更新日期:2018-03-01 00:00:00
abstract::Drains are routinely used after thyroidectomy and lateral neck dissection. In rare cases, the drainage tube is broken and retained in the neck. It is difficult to identify the sonographic features of the remnant tube due to variable reasons. However, through comparative and phantom observations, we noticed the double-...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000331
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVES:To determine pelvic ultrasound characteristics in women after radiofrequency endometrial ablation (EA) and evaluate the association of those characteristics with symptoms and the need for subsequent therapeutic intervention. METHODS:This retrospective cohort study evaluated patients who underwent transvagin...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0b013e318276653b
更新日期:2012-12-01 00:00:00
abstract::Liver fibrosis is evaluated to assess the prognosis and guide the treatment of chronic hepatitis B (CHB). To compare the efficiency of 2 transient elastography techniques for grading liver fibrosis in CHB: visual transient elastography (ViTE) with real-time image guidance and FibroScan (FS) with no image guidance. All...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000509
更新日期:2020-09-23 00:00:00
abstract:PURPOSE:The aims of this study were to evaluate if a dynamic automatic image optimization technique decreases examination time and number of keystrokes while maintaining or improving image quality and to determine if these variables vary with sonographer experience. MATERIALS AND METHODS:Five sonographers of varying e...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0b013e3181a424e2
更新日期:2009-06-01 00:00:00
abstract::Tissue elasticity is becoming a more commonly used parameter in evaluation of parenchyma in inflammatory diseases. Considering the changes in the thyroid and salivary glands with adolescence, determination of mean elasticity ranges with a function of age is necessary to apply ultrasound elastography more widely in the...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000352
更新日期:2018-06-01 00:00:00
abstract:PURPOSE:This study aimed to determine the ability of ultrasound to predict survival and detect more aggressive tumors in women with ovarian masses. MATERIALS AND METHODS:Institutional review board approval was obtained. A total of 167 patients who presented with adnexal mass/masses were included. These were documented...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000401
更新日期:2019-03-01 00:00:00
abstract::Carotid and vertebral artery spectral Doppler ultrasound waveforms can be affected by many types of local lesions, proximal cardiovascular disease, and devices, as well as distal cerebrovascular disease. Recognizing abnormal spectral Doppler ultrasound waveforms and their significance is important for proper managemen...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0b013e31821c7f6a
更新日期:2011-06-01 00:00:00
abstract::Ultrasonography (US) is believed to be the most available method of detecting hepatic portal venous gas (HPVG) with real-time imaging capability. Hepatic portal venous gas has characteristic image appearances in various ultrasound modes such as bright mode, Doppler mode, and even motion (M) mode. In this article, we g...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0000000000000376
更新日期:2018-12-01 00:00:00
abstract::To determine if a significant contralateral stenosis affects interpretation tables of the ipsilateral internal carotid artery's degree of stenosis in duplex Doppler ultrasound, the records of 307 patients with carotid duplex ultrasound studies with an angiogram performed within 3 months without intervening interventio...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0b013e31814fb469
更新日期:2007-09-01 00:00:00
abstract::The advent of antiangiogenic drugs in cancer therapy necessitates an imaging modality that can longitudinally assess posttreatment changes in tumor vasculature. In this regard, microbubble contrast-enhanced ultrasonography (CEUS) offers several advantages over conventional imaging modalities. The small size of microbu...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0b013e3181bce364
更新日期:2009-12-01 00:00:00
abstract::HDlive (high-definition live or real-time US), a new ultrasound software, combines a movable virtual adjustable light source in a software that calculates the proportion of light reflecting through surface structures, depending on light direction. The light source can be manually positioned to illuminate the desired a...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0b013e31829a582b
更新日期:2013-09-01 00:00:00
abstract::Anorectal malformations are a rare condition difficult to diagnose in the prenatal period. It can be suspected if distal bowel appears dilated in the first-trimester ultrasound or if intraluminal echogenic foci are detected during the second-trimester scan. We report a case with these ultrasound signs (dilated sigmoid...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000282
更新日期:2017-03-01 00:00:00
abstract::The Achilles tendon is a frequent site of foot and ankle discomfort. Its superficial location lends it to excellent evaluation by ultrasonography. Continuing advances in US have enabled evaluation of Achilles pathology with unprecedented accuracy and efficiency in a cost-effective manner. For these reasons, radiologis...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0b013e3181b738a6
更新日期:2009-09-01 00:00:00
abstract::Although hemorrhagic corpus luteum cysts are frequently seen during sonography of the female pelvis, their diagnosis is often challenging as a result of variations in size, thickness of the cyst wall, and internal echo pattern depending on the formation and lysis of the clot. There are cases in which hemoperitoneum is...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/00013644-200406000-00003
更新日期:2004-06-01 00:00:00
abstract::Transcranial Doppler ultrasonography is essential in the management of children with sickle cell anemia and is a valuable adjunct to the evaluation of a variety of intracranial pathologies in children and adults, including vasoconstriction caused by subarachnoid hemorrhage, demonstration of major intracranial vessel s...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0b013e3181862b67
更新日期:2008-09-01 00:00:00
abstract::Despite the overwhelming prevalence of cholelithiasis, many health care professionals are not familiar with the basic pathophysiology of gallstone formation. This article provides an overview of the biochemical pathways related to bile, with a focus on the physical chemistry of bile. We describe the important factors ...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0000000000000287
更新日期:2017-09-01 00:00:00
abstract::Ultrasound plays an important role in the diagnostic workup of scrotal diseases. It can differentiate a testicular mass from an extratesticular mass and determine whether the mass is cystic, solid, or complex. Using this information a likely diagnosis can be ascertained. In the acute scrotum, acute epididymitis/epidid...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/00013644-200412000-00004
更新日期:2004-12-01 00:00:00
abstract::Breast adenomyoepithelioma is considered as an uncommon breast tumor. It is evaluated as a variant of intraductal papilloma. The treatment of choice is local resection with free margins. It is the first case of breast adenomyoepithelioma reported with conventional ultrasonography, elastography (both free-hand and acou...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000119
更新日期:2015-09-01 00:00:00
abstract::Urinary tract infection (UTI) in infants and children demands rapid differentiation between upper UTI (pyelonephritis) and lower UTI (cystitis) for prompt treatment to be initiated so that renal damage is minimized. This pictorial review presents a wide gamut of structural and functional abnormalities of the urinary t...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/00013644-200106000-00003
更新日期:2001-06-01 00:00:00
abstract::The purpose of this article was to discuss the process of setting up a nuchal translucency (NT) screening clinic in clinical practice, how to interpret the information in combination with other clinical tests, what to do if abnormal results are obtained, and to illustrate some of the fetal anomalies that are associate...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0000000000000161
更新日期:2016-03-01 00:00:00
abstract::Our purpose was to evaluate the clinical indications for carotid duplex ultrasonography and determine for each indication how often carotid artery disease was identified.We retrospectively reviewed the consecutive reports for 3191 carotid ultrasound examinations. We tracked 14 indications to determine how often examin...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000371
更新日期:2018-09-01 00:00:00
abstract::Renal transplantation is the best treatment option for chronic renal failure, with marked improvement in social activity, work, and family life. In addition to these obvious improvements, it is an extremely cost-effective procedure when successful. Ultrasonography plays a major role in the imaging of these patients, a...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/00013644-200309000-00003
更新日期:2003-09-01 00:00:00
abstract::The evaluation of the diaphragm in critically ill patients is simple and noninvasive and has shown good repeatability. The aim of the study was to generate a predictive index for successful weaning (ULDIMex) from invasive mechanical ventilation (IMV) based on an ultrasonographic diaphragmatic assessment before perform...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000442
更新日期:2020-03-01 00:00:00
abstract::Our objective was to assess the differential diagnostic value of classification of obstructive versus nonobstructive azoospermia by scrotal ultrasound. Forty patients with azoospermia were selected for our study (ages, 23-35; average, 29 ± 5.34 years). Patients were divided into the obstructive (17) or nonobstructive ...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000299
更新日期:2017-12-01 00:00:00
abstract::Congenital heart diseases (CHDs) carry a high prevalence rate in the general population (0.8%-1%). Most fetal CHDs occur in patients without any risk factors. The prenatal recognition of CHD has major impacts on the pregnancy and its outcome. The aforementioned data justify prenatal ultrasound (US) screening of CHD in...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0b013e3182915867
更新日期:2013-06-01 00:00:00
abstract::To test the reliability of CEUS on the diagnosis of acute (AR) or chronic rejection (CR) after renal transplantation, patients who received renal transplantation in our center from January 2011 and December 2015 were retrospectively included in the current study. All the included patients underwent contrast-enhanced u...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000449
更新日期:2020-03-01 00:00:00