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 intervention were retrospectively reviewed for peak systolic velocity, end-diastolic velocity, internal carotid artery-common carotid artery ratio, and angiographic degree of stenosis. Data were grouped into categories of degree of contralateral stenosis, and Pearson r correlation was used to determine significance of ipsilateral Doppler parameters to angiographic data. As the degree of contralateral stenosis increases, the correlation of ultrasound parameters becomes less significant. At a contralateral stenosis of less than 40%, the P value for peak systolic velocity was 0.0006; at a contralateral stenosis between 40% and 59%, the P value was 0.133; at a contralateral stenosis between 60% and 79%, the P value was 0.241; and at a contralateral stenosis between 80% and 99%, the P value was 0.439. Therefore, correlations are no longer significant at levels above 40% contralateral stenosis. The Doppler parameters were scattered in patients with greater than 40%contralateral stenosis, and "corrected" correlation tables could not be derived. As stenosis increases in the contralateral internal carotid artery, Doppler values become inaccurate in determining the degree of stenosis in the ipsilateral internal carotid artery, with the occurrence of both the overestimation and underestimation of the degree of stenosis.
journal_name
Ultrasound Qjournal_title
Ultrasound quarterlyauthors
Grajo JR,Barr RGdoi
10.1097/RUQ.0b013e31814fb469subject
Has Abstractpub_date
2007-09-01 00:00:00pages
199-202issue
3eissn
0894-8771issn
1536-0253pii
00013644-200709000-00027journal_volume
23pub_type
杂志文章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 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 article reviews the ultrasound (US) scanner setting, the examination methodology, and the anatomy of the skin. Dermatologic US requires frequencies of 15 MHz or greater and appropriate probe handling. The use of color Doppler imaging is mandatory, proven that it is set to detect slow flows. Trapezoid field of vie...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000520
更新日期:2020-12-01 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
abstract::Early and accurate prenatal diagnosis of intrauterine growth restriction is important. Commonly used biometric parameters have limited specificity and require accurate dating. Fetal abdominal wall thickness (AWT) could be a useful supplemental parameter. We performed a retrospective study of 100 third trimester ultras...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000310
更新日期:2017-09-01 00:00:00
abstract::Portal venous system evaluation is required in many clinical circumstances, as substantial morbidity and mortality can be associated with a spectrum of portal vein abnormalities. Portal venous system pathologies can be congenital or acquired, and the knowledge of their imaging appearances will allow for a confident di...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0000000000000421
更新日期:2019-12-01 00:00:00
abstract::Primary angiosarcoma of the breast is a rare entity. In this case report, we present a case of primary angiosarcoma of the breast in a young woman who presents with her entire right breast enlarged without skin coloration change or signs of mastitis. She recently stopped breastfeeding. This case report will review the...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0000000000000274
更新日期:2017-03-01 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 author provides some suggestions for those considering travel to developing countries to provide training in ultrasound at small medical facilities. Issues discussed will include planning before the trip, personal safety and health while there, as well as equipment and travel issues. ...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000043
更新日期:2014-03-01 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::This study aims to evaluate the value of ultrasonography in the diagnosis, treatment, and follow-up of primary thyroid lymphoma. The clinical data of 12 patients, who were pathologically confirmed with thyroid lymphoma and treated in our hospital, were retrospectively analyzed. Ultrasonography was performed on the thy...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000414
更新日期:2019-09-01 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::The objective of this study was to describe the diagnostic value of positron emission tomography/computed tomography (PET/CT) and ultrasound (US) for identifying metastatic axillary disease in primary breast cancer. This is a retrospective review of 240 patients with treatment-naive unilateral primary breast cancer of...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000535
更新日期:2020-11-12 00:00:00
abstract::Uterine fibroids are common benign lesions. Other common benign masses include renal cysts, renal angiomyolipomas, hepatic cysts, hepatic hemangiomas, thyroid cysts, adrenal incidentalomas, pulmonary granulomas and hamartomas, ovarian cysts, and dermoids. All these conditions, especially in asymptomatic patients, almo...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/01.ruq.0000263845.23055.f6
更新日期:2007-03-01 00:00:00
abstract::Noninvasive characterization of focal liver lesions is largely based on their enhancement patterns on contrast-enhanced imaging. The use of microbubble contrast agents combined with specialized ultrasound (US) techniques has significantly expanded the role of US in the diagnosis of focal liver lesions based on their v...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:
更新日期:2006-03-01 00:00:00
abstract::Intraoperative ultrasound provides spatial resolution of the pancreas superior to computed tomography, magnetic resonance imaging, and transabdominal sonography. This pictorial essay will review common benign and malignant pancreatic processes including the following: pancreatic ductal adenocarcinoma, pancreatitis, en...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0b013e3181901ce4
更新日期:2009-03-01 00:00:00
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::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::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::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::Tethered spinal cord is associated with closed and open neural tube defects. With prenatal screening, spinal defects are consistently diagnosed during fetal life. We show that the conus medullaris can be seen well with prenatal ultrasound, and the diagnosis of tethered spinal cord can be made during fetal life. In thi...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0b013e3181a32218
更新日期:2009-06-01 00:00:00
abstract::Fungal inflammatory pseudotumor (FIPT) of the liver is a rare disease that may be mistaken for a malignant tumor. It is difficult to diagnose because of its nonspecific clinical and imaging features. We report the case of a 46-year-old Asian man who presented with a mass in the right upper quadrant of the abdomen. The...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000285
更新日期:2017-09-01 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::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::Ultrasound has become a widely used diagnostic imaging modality in medicine because of its safety and portability. Because of rapid advances in technology, in recent years, sonographic imaging quality has significantly increased. Despite these advances, the potential to encounter artifacts while imaging remains.This a...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0b013e3182a80d34
更新日期:2014-06-01 00:00:00
abstract::This study aimed to evaluate the levator hiatus area (LHA) at rest and during the performance of maximal pelvic floor muscle (PFM) contractions, during the abdominal hypopressive technique (AHT), and during the combination of PFM contractions (PFMCs) and the AHT. The study included 17 healthy nulliparous women who had...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000181
更新日期:2016-06-01 00:00:00
abstract::This article reviews salient features of pediatric gynecologic ultrasound. It reviews technologic factors, technique, and normal anatomy used to evaluate the pediatric gynecologic tract for abnormality. It reviews and illustrates clinical imaging information necessary to know in the ultrasonic analysis of several clin...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/00013644-200409000-00007
更新日期:2004-09-01 00:00:00
abstract:BACKGROUND:Endometrial polyps are localized overgrowth of glands, stroma, and blood vessels and reported in 13% to 50% of women with dysfunctional uterine bleeding. Transvaginal ultrasound (TVUS) is the initial noninvasive modality of choice for the evaluation of endometrial polyps. The addition of intrauterine contras...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000384
更新日期:2018-12-01 00:00:00
abstract::Although there is an increasing use of more imaging modalities in breast imaging, the role of breast sonography has not diminished--in fact, the applications of sonography have increased with the improvement of high-frequency equipment. Compared with other breast imaging modalities, current sonographic equipment has e...
journal_title:Ultrasound quarterly
pub_type: 杂志文章,评审
doi:10.1097/RUQ.0b013e31816b8cdf
更新日期:2008-03-01 00:00:00
abstract::Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome is a rare disorder characterized by aplasia or hypoplasia of the uterus and vagina due to arrest in the development of the müllerian ducts. Women with this syndrome have the normal 46 XX karyotype, normal female secondary sex characteristics, and primary amenorrhea. Only ...
journal_title:Ultrasound quarterly
pub_type: 杂志文章
doi:10.1097/RUQ.0000000000000284
更新日期:2017-09-01 00:00:00