Abstract：
:Neuroimaging is an invaluable diagnostic tool for sorting through the vast array of etiologies that underlie altered mental status (AMS). Head computed tomography (CT) without contrast is the primary modality for evaluation of AMS and should be complemented by MR imaging in cases of negative CT but high clinical concern. Studies to maximize brain imaging efficiency and improve the yield of positive scans through the utilization of clinical and laboratory pre-scan diagnostics are ongoing. However, imaging remains the gold standard due to its rapidity with which certain diagnoses can be made or excluded.
journal_name
Radiol Clin North Amjournal_title
Radiologic clinics of North Americaauthors
Uzelac Adoi
10.1016/j.rcl.2019.08.002subject
Has Abstractpub_date
2020-01-01 00:00:00pages
187-197issue
1eissn
0033-8389issn
1557-8275pii
S0033-8389(19)30104-6journal_volume
58pub_type
杂志文章,评审abstract：:Osteoporosis is a serious public health problem. The incidence of osteoporotic fractures increases with age. As life expectancy increases, social costs associated with osteoporotic fractures will multiply exponentially. The early diagnosis of osteoporosis, thanks to evermore precise devices, becomes, therefore, fundam...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：10.1016/j.rcl.2008.04.010
更新日期：2008-07-01 00:00:00
abstract：:Recently, CT scans have proved to be useful in revealing the site, level, and cause of bowel obstruction and in displaying signs of threatened bowel viability. This article outlines the utility of CT scans, both in terms of the diagnostic features of bowel obstruction and in the evaluation of its accuracy. ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1994-09-01 00:00:00
abstract：:Posttreatment imaging is important to ensure early detection of oncological complications, and appropriate timing and frequency is an important consideration, especially in high-risk patients. Focused magnetic resonance (MR) imaging is the preferred modality for detection of local recurrence of soft tissue tumors and ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2011.07.011
更新日期：2011-11-01 00:00:00
abstract：:Imaging of the adrenal gland for characterization of adrenal lesions has made tremendous strides and new technologies continue to evolve. This article highlights the anatomic and physiologic imaging principles that underpin current major adrenal imaging modalities and the new techniques becoming available. This articl...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2008.01.003
更新日期：2008-01-01 00:00:00
abstract：:Lower resolution CT scanners play an important role in the evaluation of the cerebellopontine angle, but careful integration along with the older conventional examinations is often necessary. A high-resolution CT scanner may provide all the necessary information. With proper techniques, bony changes are most clearly a...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：
更新日期：1982-03-01 00:00:00
abstract：:In a pregnant woman who presents with acute pelvic pain and an adnexal mass, pregnancy-related etiologies, such as ectopic pregnancy or ovarian torsion, are typically the first diagnoses to be considered. Many other causes of pelvic pain associated with an adnexal mass can occur in pregnant patients, however. Some cau...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2003.12.006
更新日期：2004-03-01 00:00:00
abstract：:The clinical and radiologic manifestations of posterior reversible encephalopathy syndrome and reversible cerebral vasoconstriction syndrome are reviewed. The relationship between these entities is discussed. A hypothesis of a common underlying pathophysiology is proposed and substantiated based on the current medical...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2019.07.001
更新日期：2019-11-01 00:00:00
abstract：:Peripheral arterial disease (PAD) is an important manifestation of atherosclerosis, with an estimated age-adjusted prevalence of approximately 13% in people older than 50 years. Noninvasive vascular laboratory physiologic studies are indispensable tools in the initial evaluation and workup and postintervention follow-...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2014.07.006
更新日期：2014-11-01 00:00:00
abstract：:By performing a comprehensive MR imaging examination, it is not only possible accurately to characterize and stage cystic and solid lesions of the kidney, but also to provide important preoperative information to the surgeon. In addition, MR imaging can characterize many adrenal lesions and frequently can obviate the ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0033-8389(02)00059-3
更新日期：2003-01-01 00:00:00
abstract：:This article addresses the dependence of the image characteristics in MR imaging of the orbit. Among the variables discussed are signal-to-noise (SNR), field of view (FOV), spatial resolution, and their interdependence. It is further shown how image contrast can be controlled by judicious choice of pulse timing parame...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1987-05-01 00:00:00
abstract：:Spinal stenosis in either the cervical or lumbar spinal segments is one of the most common indications for spine imaging and intervention, particularly among the elderly. This article examines the pathophysiology and imaging of the corresponding clinical syndromes, cervical spondylotic myelopathy or neurogenic intermi...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2012.04.007
更新日期：2012-07-01 00:00:00
abstract：:Mammography has had a major impact on the earlier detection, treatment options, and management decisions and survival and mortality rates of breast cancer. Consequences include overwhelming demand for mammography; problems with optimum response by radiology; limited availability of the examination, especially to the s...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:Stress cardiac magnetic resonance imaging can provide valuable information for the diagnosis and management of ischemic heart disease (IHD). It plays an important role in the initial diagnosis in patients with acute chest pain, in the diagnosis of complications post myocardial infarction (MI), in the assessment of the...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2014.11.006
更新日期：2015-03-01 00:00:00
abstract：:Diffusion-weighted imaging (DWI) has become a routine component of clinical MR imaging. Its unique soft tissue contrast mechanism exploits differences in the motion of water molecules in vivo at a biologically meaningful scale. The clinical potential of DWI in lesion detection, characterization, and response assessmen...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2015.01.002
更新日期：2015-05-01 00:00:00
abstract：:We believe that the preponderance of evidence suggests that MRI is less accurate than conventional mammography in the diagnosis of primary cancer of the breast. Thus, it currently has no established place in algorithms for the evaluation of patients suspected of having breast cancer. MRI could be used to evaluate mass...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1988-05-01 00:00:00
abstract：:Evaluation for splenic injury is an important component of patient assessment after blunt abdominal trauma. Key imaging modalities include ultrasound, particularly for rapid identification of hemoperitoneum, and computed tomography (CT), which permits a more detailed and accurate determination of splenic integrity. Sp...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2011.08.008
更新日期：2012-01-01 00:00:00
abstract：:Important aspects of ischemic heart disease are currently evaluated with magnetic resonance imaging and phosphorus-31 spectroscopy. The combined use of magnetic resonance imaging and spectroscopy will enable the noninvasive visualization of the coronary arteries, provide flow velocity and volume data in the coronary c...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1994-05-01 00:00:00
abstract：:Sarcoidosis, a systemic disease of unknown cause, frequently involves the eye, orbit, and central nervous system. The MR imaging findings of orbital and optic pathway sarcoidosis may closely resemble several other orbital and intracranial diseases. This article reviews MR imaging findings of sarcoidosis when it involv...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0033-8389(05)70079-8
更新日期：1999-01-01 00:00:00
abstract：:Since the inception of the discipline of nuclear medicine, thyroid evaluation and therapy with radioactive isotopes have remained an important and constant component of thyroidology. Parathyroid scintigraphy with 201Tl/99mTc subtraction has been a more recent and also very useful addition in the assessment of hyperpar...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1993-09-01 00:00:00
abstract：:The radiologic evaluation of sepsis of unknown origin has changed dramatically since the introduction of cross-sectional imaging. Interventional procedures such as abscess drainage, cholecystostomy, biliary drainage, nephrostomy, and fluid aspiration have reduced the morbidity and mortality associated with occult sour...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1996-01-01 00:00:00
abstract：:Computed tomography (CT) imaging of the kidney, ureter, and bladder permit accurate and prompt diagnosis or exclusion of traumatic injuries, without the need to move the patient to the fluoroscopy suite. Real-time review of imaging permits selective delayed imaging, reducing time on the scanner and radiation dose for ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2015.02.005
更新日期：2015-07-01 00:00:00
abstract：:Multimodality, noninvasive imaging is increasingly used in the identification and management of pulmonary hypertension (PH). Chest radiography, ventilation-perfusion scintigraphy, and Doppler echocardiography are frequently the initial studies used to evaluate patients suspected of having PH. However, their ability to...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2016.05.011
更新日期：2016-11-01 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：:The foot and ankle delicately balance the need for support of the weight of the human body, with the need for flexibility. Palpable masses about the foot and ankle, therefore, are most commonly related to trauma or mechanical instability. Non-neoplastic causes, such as ganglion cysts and callus, therefore, predominate...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2018.06.010
更新日期：2018-11-01 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：: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：:Whereas the skeletal, anatomic, and clinical aspects of this condition have been scrutinized in detail, the radiologic changes have received less attention. In this discussion the plain film changes are briefly reviewed, and emphasis is directed toward the myelographic manifestations that reflect intraspinal and intra...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章
doi：
更新日期：1977-08-01 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：:Acute pelvic pain in the nonpregnant woman is one of the most common conditions requiring emergent medical evaluation in routine clinical practice. Although clinical evaluation and laboratory testing are essential, imaging plays a central role. Although various adnexal and uterine disorders may result in acute pelvic ...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2019.11.002
更新日期：2020-03-01 00:00:00
abstract：:Valvular heart disease is a common clinical problem. Although echocardiography is the standard technique for the noninvasive evaluation of the valves, cardiac CT has evolved to become a useful tool in the evaluation of the cardiac structures as well. Importantly, CT allows for improved quantification of valvular calci...
journal_title：Radiologic clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.rcl.2018.08.011
更新日期：2019-01-01 00:00:00
