Abstract：
:Sonography and computed tomography play complementary roles in imaging mass lesions in the salivary glands and their surroundings. Ninety per cent of parotid tumors originate from the superficial lobe, and we consider sonography to be the method of choice for imaging these lesions. The sensitivity of high-resolution sonography in detecting intraparotid tumors approaches 100 per cent, and ultrasound is therefore an excellent method to evaluate patients with parotid swelling. It may provide clinically useful information by precisely outlining the tumor borders or by detecting multiple or bilateral lesions. We restrict our use of CT to tumors that appear to extend beyond the borders of the parotid gland with possible invasion of surrounding soft tissues or bone. CT is also the method of choice for differentiating lesions of the deep lobe from parapharyngeal tumors and for staging carcinomas. Although ultrasound supplemented with computed tomography should replace conventional sialography in the work-up of parotid neoplasms, sialography remains the method of choice for evaluating patients with chronic sialadenitis, autoimmune diseases, and sialolithiasis. The role of sonography in these conditions is limited to ruling out a parotid neoplasm, assessing the extent of abscess formation, or assisting in localizing calculi in selected patients.
journal_name
Radiol Clin North Amjournal_title
Radiologic clinics of North Americaauthors
Wittich GR,Scheible WF,Hajek PCsubject
Has Abstractpub_date
1985-03-01 00:00:00pages
29-37issue
1eissn
0033-8389issn
1557-8275journal_volume
23pub_type
杂志文章,评审abstract：:Detection of muscle invasion is a critical aspect in management of urinary bladder cancer. MR imaging has the potential and promise of delivering this premise noninvasively. This article reviews the current status of MR imaging in evaluation of bladder cancer. Also discussed are other important neoplastic and nonneopl...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2012.08.011
更新日期：2012-11-01 00:00:00
abstract：:In single-center trials across 42,838 examinations, 150 (0.35%) cancers were identified only sonographically in average-risk women. Over 90% of the 126 women with sonographically depicted cancers had dense or heterogeneously dense parenchyma. Of the 150 cancers, 141 (94%) were invasive, with a mean size of 9 to 11 mm ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2004.04.003
更新日期：2004-09-01 00:00:00
abstract：:This article considers the significance and role of classic barium radiology in the diagnosis of gastric carcinoma and correlates it with endoscopy and other diagnostic modalities. Technical considerations for demonstrating optimum radiographic images of gastric carcinoma in terms of location, control of lumen distent...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1994-11-01 00:00:00
abstract：:Incidentally detected lung nodules are increasingly common in routine diagnostic computed tomography (CT) imaging. Formal management recommendations for incidental nodules, such as those outlined by the Fleischner Society, must therefore reflect a balance of malignancy risk and the clinical context in which nodules ar...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2018.01.002
更新日期：2018-05-01 00:00:00
abstract：:Visualization of airways in chronic obstructive pulmonary disease (COPD) patients is important for understanding the disease and therapeutic management. Today a perpendicular visualization and measurement of airway diameter and wall thickness are possible. Postprocessing software allows for the automatic segmentation ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2008.11.012
更新日期：2009-03-01 00:00:00
abstract：:Correction of structural defects of the heart associated with cyanotic heart disease often requires rerouting of systemic venous return into the pulmonary arteries and pulmonary venous return into the ventricles. Preliminary experience suggests that magnetic resonance imaging, through its superior depiction of the res...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：
更新日期：1985-12-01 00:00:00
abstract：:Neonatal cranial ultrasound continues to be a popular initial imaging modality because of the safety, low-cost, and portability of the examination. The higher frequency transducers and enhanced ability for signal processing that is possible with current ultrasound machines improves visualization of complex congenital ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0033-8389(05)70253-0
更新日期：1999-11-01 00:00:00
abstract：:PET with [(18)F]-fluorodeoxyglucose (FDG) has been accepted as a useful imaging modality for the diagnosis of a variety of malignancies. This article discusses the use of FDG-PET in the management of patients with thyroid and head or neck cancers. ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2004.07.006
更新日期：2004-11-01 00:00:00
abstract：:The screening controversy arose from inappropriate and scientifically insupportable data analysis of the early results from the randomized, controlled trials of screening. Data were used that were inadequate for making medical recommendations by using subgroup analyses from trials that were not designed to permit subg...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1995-11-01 00:00:00
abstract：:Technical advances in high-resolution ultrasound have brought ultrasound to the forefront of thyroid imaging. Despite the seeming similarity in the imaging appearance of diffuse thyroid diseases, the radiologist should be able to identify patients with diffuse thyroid abnormality, be aware of the spectrum of the imagi...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2011.02.002
更新日期：2011-05-01 00:00:00
abstract：:Imaging has a key role in the identification of bronchiectasis. Over the years, imaging tests have become increasingly accurate in depicting the features of early bronchiectasis. This article covers the clinical, pathologic, and functional features of bronchiectasis; high-resolution CT scan technique; the signs of bro...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0033-8389(05)70009-9
更新日期：1998-01-01 00:00:00
abstract：:Ultrasonography is a dynamic, powerful, and readily available tool in the armamentarium of biliary diagnosis. The use of this modality is indicated in the initial work-up of jaundice since ultrasonography is exquisitely sensitive to the presence of intrahepatic or extrahepatic biliary dilatation. The liver and pancrea...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1991-11-01 00:00:00
abstract：:Hepatic calcifications, the most common causes of which are calcified granuloma and hydatid disease, occur infrequently. When present, however, they invariably indicate an abnormality, the nature of which may usually be determined by abdominal ultrasonography, fluoroscopy, or conventional contrast radiography. ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：
更新日期：1980-08-01 00:00:00
abstract：:The sella and parasellar region, found between the anterior and central skull base, represents the central aspect of the skull base. Given the location of the pituitary gland in this location, small lesions in this location may have major physiologic effects on the human body. This article reviews the anatomy, develop...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2016.09.002
更新日期：2017-01-01 00:00:00
abstract：:The biliary complications of pancreatitis include cholestasis, secondary biliary cirrhosis, cholangitis, and pseudocyst or fistula affecting the hepatobiliary system. Of these, the most relevant for radiologists is cholestasis caused by biliary duct stenosis in an inflamed pancreatic head. Radiologic assessment of the...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1989-01-01 00:00:00
abstract：:The upper gastrointestinal series traditionally includes fluoroscopy and filming of the esophagus, stomach, and duodenum. Optimal use of each of the available examination techniques in these regions is discussed in this article. ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1994-11-01 00:00:00
abstract：:Scrotal ultrasound is now the first and only imaging examination necessary to evaluate the scrotal contents. This article first discusses normal scrotal anatomy, and then examines the imaging findings of various malignant and benign scrotal masses. Other topics include cryptorchidism, extratesticular abnormalities, an...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1996-11-01 00:00:00
abstract：:CT is the radiographic procedure of choice in evaluating laryngeal neoplasia. CT not only is easily tolerable and relatively noninvasive for the patient but also assesses deep and extralaryngeal pathology. It allows tumor staging and, therefore, treatment planning to be more intelligently performed. ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：
更新日期：1984-03-01 00:00:00
abstract：:Skeletal growth is a dynamic process. A knowledge of the structure and function of the normal growth plate is essential in order to understand the pathophysiology of abnormal skeletal growth in various diseases. In this well-illustrated article, the authors provide a radiographic classification of abnormal growth plat...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：
更新日期：1987-11-01 00:00:00
abstract：:Nuclear medicine imaging of the breast is a US Food and Drug Administration-approved imaging modality that is being integrated into clinical practice to increase the armamentarium of tools available to diagnose breast cancer. The authors' practice, and others that have integrated nuclear medicine imaging of the breast...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2010.06.008
更新日期：2010-09-01 00:00:00
abstract：:Pain in the shoulder arises from a wide variety of abnormalities. The most common cause of acute pain in the nontraumatized shoulder is calcific tendonitis or bursitis readily identified by plain film radiography. On the other hand, the evaluation of chronic pain usually requires some combination of arthrography, CT, ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1988-11-01 00:00:00
abstract：:Pelvic pain during the first trimester of pregnancy can pose a challenge to the clinician. The noninvasive nature, safety, and reliability of ultrasonography make it the diagnostic method of choice for pregnant patients who have pelvic pain. Sonography provides information that allows for diagnosis of both pregnancy-r...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2006.10.015
更新日期：2006-11-01 00:00:00
abstract：:Magnetic resonance (MR) imaging of the pancreas is useful as both a problem-solving tool and an initial imaging examination of choice. With newer imaging sequences such as diffusion-weighted imaging, MR offers improved ability to detect and characterize lesions and identify and stage tumors and inflammation. MR cholan...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2014.02.006
更新日期：2014-07-01 00:00:00
abstract：:Advances in high-resolution prenatal ultrasound and fetal magnetic resonance (MR) imaging have changed the practice of obstetrics by allowing better visualization of intrathoracic and neck structures and better estimation of lung volumes. More accurate prenatal diagnosis has increased options for pregnancy management ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2011.06.005
更新日期：2011-09-01 00:00:00
abstract：:Metacarpal morphometry and radiogrammetry are the oldest methods for quantitative assessment of the skeleton. The historical aspects of these measurements are reviewed. Although they were inexpensive and widely available and provided useful research and epidemiologic information, they were labor intensive and imprecis...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2010.03.006
更新日期：2010-05-01 00:00:00
abstract：:This article presents an update of the field of percutaneous discectomy and a perspective as to where percutaneous discectomy currently fits in the treatment of patients with herniated discs. The future of minimally invasive disc surgery is also entertained, and a novel approach to lumbar disc surgery is presented. ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0033-8389(05)70041-5
更新日期：1998-05-01 00:00:00
abstract：:TVS has brought the pelvic organs closer to us than ever before. Color Doppler probes have exposed small vessels that could not be seen with real-time technique alone, and pulsed Doppler is becoming an important adjunct in many physiologic and pathologic states. Vascular changes of the ovary and uterus during the mens...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1992-07-01 00:00:00
abstract：:This article has sought to clarify the problems that beset the histologic classification of the numerous forms of breast cancer. Not only is classification itself difficult, but our lack of complete understanding of breast cancer often leaves us without criteria sufficiently clear to establish definite categories. Any...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：
更新日期：1983-03-01 00:00:00
abstract：:Posterior reversible encephalopathy syndrome (PRES) and venous thrombosis are frequently encountered first in the emergency setting and share some common characteristics. The clinical presentation in both entities is vague, and the brain parenchymal findings of PRES syndrome may resemble those of venous thrombosis in ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2010.07.016
更新日期：2011-01-01 00:00:00
abstract：:A coalition is a congenital bony, cartilaginous, or fibrous connection (called a bar) between two or more bones. Coalitions are clinically significant because they prevent normal joint motion. Tarsal coalition may be difficult to identify on clinical and imaging evaluation. Given the high prevalence of coalition, radi...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2008.09.005
更新日期：2008-11-01 00:00:00
