abstract：:Food and Drug Administration approval of 7T MR imaging allows ultrahigh-field neuroimaging to extend from the research realm into the clinical realm. Increased signal is clinically advantageous for smaller voxels and thereby high spatial resolution imaging, with additional advantages of increased tissue contrast. Susc...

journal_title：Magnetic resonance imaging clinics of North America

authors： Jones SE,Lee J,Law M

更新日期：2021-02-01 00:00:00

abstract：:Conducting magnetic resonance imaging (MRI) safety screening is not a new idea and has developed as a proved method in efforts to ensure patient safety and prevent accidents in the magnetic resonance (MR) environment. A growing number of surgical procedures with implanted medical devices have complicated MR screening ...

journal_title：Magnetic resonance imaging clinics of North America

authors： Kimbrell V

更新日期：2020-11-01 00:00:00

abstract：:This article explores new acquisition methods in magnetic resonance (MR) imaging to provide high spatial and temporal resolution imaging for a wide spectrum of clinical applications in the abdomen and pelvis. We present an overview of some of these advanced MR techniques, such as non-cartesian image acquisition, fast ...

journal_title：Magnetic resonance imaging clinics of North America

authors： Chan WY,Hartono S,Thng CH,Koh DM

更新日期：2020-08-01 00:00:00

abstract：:MR imaging of the postoperative shoulder after instability surgery is challenging. The radiologist must be familiar with surgical procedures, altered anatomy, and expected postoperative findings for correct interpretation of normal findings versus a true pathology. Artifacts from metallic hardware or abrasions further...

journal_title：Magnetic resonance imaging clinics of North America

authors： Stern C,Bouaicha S,Del Grande F,Sutter R

更新日期：2020-05-01 00:00:00

abstract：:The imaging of rectal cancer has evolved noticeably over the past 2 decades, paralleling the advances in therapy. The methods for imaging rectal cancer are increasingly used in clinical practice with the purpose of helping to detect, characterize and stage rectal cancer. In this setting, MR imaging emerged as the most...

journal_title：Magnetic resonance imaging clinics of North America

authors： Curvo-Semedo L

更新日期：2020-02-01 00:00:00

abstract：:Knee radiographs are widely used in clinical practice. Many features can be depicted when a systematic analysis of the different views is performed. This article focuses on different types of joint effusion and on the analysis of the bone outlines of the knee, particularly on the lateral view. Systematic analysis of t...

journal_title：Magnetic resonance imaging clinics of North America

authors： Jacques T,Badr S,Michelin P,Lefebvre G,Dartus J,Cotten A

更新日期：2019-11-01 00:00:00

abstract：:The potential role of cardiac MR imaging in the diagnosis, risk-stratification, and treatment of patients with cardiac arrhythmias is rapidly evolving. Beyond substrate identification and characterization, it is now feasible to perform MR imaging-based noninvasive virtual programmed stimulation to identify potential a...

journal_title：Magnetic resonance imaging clinics of North America

authors： Okada DR,Wu KC

更新日期：2019-08-01 00:00:00

abstract：:MR imaging is frequently used to assess pediatric genital disorders. The ability to obtain 3-dimensional sequences allowing for multiplanar reformations and sequences designed to minimize motion artifact have aided in the imaging evaluation in the pediatric population. For certain genital disorders, such as Müllerian ...

journal_title：Magnetic resonance imaging clinics of North America

authors： Son JK,Ali S,Al Khori N,Lee EY

更新日期：2019-05-01 00:00:00

abstract：:Testicular ultrasound is typically the first-line imaging examination in evaluating scrotal pathology. However, MR imaging can often provide valuable additional information, especially when ultrasound and/or clinical examinations are inconclusive. This is particularly evident when encountering testicular or paratestic...

journal_title：Magnetic resonance imaging clinics of North America

authors： Mathur M,Spektor M

更新日期：2019-02-01 00:00:00

abstract：:Magnetic resonance (MR) imaging has traditionally only played a small role in the clinical care of most patients with arthritis. However, with modern therapeutic strategies, early diagnosis is now more important than ever before. Consequently, advanced MRI techniques and applications now play a crucial role in managin...

journal_title：Magnetic resonance imaging clinics of North America

authors： Lambert RGW,Østergaard M,Jaremko JL

更新日期：2018-11-01 00:00:00

abstract：:MR imaging is useful for diagnosing acute pancreatitis when the clinical situation is unclear, for elucidating the underlying cause of acute pancreatitis, for evaluating complications and disease severity, and for guiding intervention. MR imaging allows for noninvasive evaluation of the pancreatic parenchyma, biliary ...

journal_title：Magnetic resonance imaging clinics of North America

authors： Porter KK,Cason DE,Morgan DE

更新日期：2018-08-01 00:00:00

abstract：:Contrast-enhanced mammography (CEM) is a contrast-enhanced modality for breast cancer detection that utilizes iodinated contrast and dual-energy imaging performed on a digital mammography unit with only slight modifications. It is approved by the US Food and Drug Administration, commercially available, and in routine ...

journal_title：Magnetic resonance imaging clinics of North America

authors： Lewin J

更新日期：2018-05-01 00:00:00

abstract：:Diffusion-weighted imaging (DWI) of the head and neck represents a distinct method of MR imaging with far-ranging applications. Research continues to hone the capabilities of DWI in characterization, prediction, monitoring, assessing response to treatment, and detecting posttreatment changes and recurrent tumors. Pret...

journal_title：Magnetic resonance imaging clinics of North America

authors： Connolly M,Srinivasan A

更新日期：2018-02-01 00:00:00

abstract：:Contrast media are essential to the practice of MR imaging. An increasing variety of agents have been approved for clinical use, specific contrast agents can often be tailored to a specific clinical question. Compared with CT contrast media, MR imaging contrast is well tolerated with an excellent safety record and a l...

journal_title：Magnetic resonance imaging clinics of North America

authors： Czeyda-Pommersheim F,Martin DR,Costello JR,Kalb B

更新日期：2017-11-01 00:00:00

abstract：:Müllerian duct anomalies, also called congenital uterine anomalies, are developmental structural disorders of the female genital tract. These anomalies are clinically relevant in patients with a history of infertility and pregnancy-related complications. The American Society for Reproductive Medicine classification sy...

journal_title：Magnetic resonance imaging clinics of North America

authors： Olpin JD,Moeni A,Willmore RJ,Heilbrun ME

更新日期：2017-08-01 00:00:00

abstract：:PET/MR imaging benefits neurologic clinical care and research by providing spatially and temporally matched anatomic MR imaging, advanced MR physiologic imaging, and metabolic PET imaging. MR imaging sequences and PET tracers can be modified to target physiology specific to a neurologic disease process, with applicati...

journal_title：Magnetic resonance imaging clinics of North America

authors： Miller-Thomas MM,Benzinger TL

更新日期：2017-05-01 00:00:00

abstract：:MR imaging is ideally suited for characterization of the soft tissue, cartilaginous, and osseous structures of the pediatric ankle. An understanding of the normal MR imaging appearance associated with the dynamic skeletal maturation process will prevent overdiagnosis and unnecessary treatment. In this article, we revi...

journal_title：Magnetic resonance imaging clinics of North America

authors： Ma GM,Ecklund K

更新日期：2017-02-01 00:00:00

abstract：:This article reviews existing and emerging techniques of interrogating metabolism in brain cancer from well-established proton magnetic resonance spectroscopy to the promising hyperpolarized metabolic imaging and chemical exchange saturation transfer and emerging techniques of imaging inflammation. Some of these techn...

journal_title：Magnetic resonance imaging clinics of North America

authors： Salzillo TC,Hu J,Nguyen L,Whiting N,Lee J,Weygand J,Dutta P,Pudakalakatti S,Millward NZ,Gammon ST,Lang FF,Heimberger AB,Bhattacharya PK

更新日期：2016-11-01 00:00:00

abstract：:The article summarizes classification schemes of spinal trauma and rules to decide on proper imaging modality after a spinal trauma. High-risk factors that recommend imaging are, for instance, age 65 years or older, a dangerous trauma mechanism, and paresthesia in the extremities. More recent classification schemes in...

journal_title：Magnetic resonance imaging clinics of North America

authors： Wolf M,Weber MA

更新日期：2016-08-01 00:00:00

abstract：:Neuroimaging plays a critical role in the management of patients with acute stroke syndrome, with diagnostic, therapeutic, and prognostic implications. A multiparametric magnetic resonance (MR) imaging protocol in the emergency setting can address both primary goals of neuroimaging (ie, detection of infarction and exc...

journal_title：Magnetic resonance imaging clinics of North America

authors： Nael K,Kubal W

更新日期：2016-05-01 00:00:00

abstract：:Modern MR imaging protocols can yield both anatomic and functional information for the assessment of hepatobiliary and pancreatic malignancies. Diffusion-weighted imaging is fully integrated into state-of-the-art protocols for tumor detection, characterization, and therapy monitoring. Hepatobiliary contrast agents hav...

journal_title：Magnetic resonance imaging clinics of North America

authors： Luna A,Pahwa S,Bonini C,Alcalá-Mata L,Wright KL,Gulani V

更新日期：2016-02-01 00:00:00

abstract：:Gynecologic brachytherapy consists of positioning radioactive sources in catheters implanted inside a tumor. MR imaging provides tumor visibility and is ideal for image-guided insertions and treatment planning. It is important at first insertion and during treatment of large residual tumors potentially needing interst...

journal_title：Magnetic resonance imaging clinics of North America

authors： Damato AL,Viswanathan AN

更新日期：2015-11-01 00:00:00

abstract：:MR imaging has emerged as the mainstay in imaging internal derangement of the soft tissues of the musculoskeletal system largely because of superior contrast resolution. The complex geometry and diminutive size of the triangular fibrocartilage complex (TFCC) and its constituent structures can make optimal imaging of t...

journal_title：Magnetic resonance imaging clinics of North America

authors： Cody ME,Nakamura DT,Small KM,Yoshioka H

更新日期：2015-08-01 00:00:00

abstract：:Pre- and postoperative evaluation, serial follow-up studies, and screening examinations of the aorta are performed with noninvasive cross-sectional imaging modalities like CT and MR imaging. MR imaging allows for dedicated comprehensive evaluation without exposure to iodinated contrast or ionizing radiation. The addit...

journal_title：Magnetic resonance imaging clinics of North America

authors： Stojanovska J,Rodriguez K,Mueller GC,Agarwal PP

更新日期：2015-05-01 00:00:00

abstract：:Aortic disease is routinely monitored with anatomic imaging, but until the recent advent of 3-directional phase contrast MRI (4D) flow, blood flow abnormalities have gone undetected. 4D flow measures aortic hemodynamic markers quickly. Qualitative flow visualization has spurred the investigation of new quantitative ma...

journal_title：Magnetic resonance imaging clinics of North America

authors： Burris NS,Hope MD

更新日期：2015-02-01 00:00:00

abstract：:Magnetic resonance (MR) imaging of the coronary arteries has been challenging, owing to the small size of the vessels and the complex motion caused by cardiac contraction and respiration. Free-breathing, whole-heart coronary MR angiography has emerged as a method that can provide visualization of the entire coronary a...

journal_title：Magnetic resonance imaging clinics of North America

authors： Ishida M,Sakuma H

更新日期：2015-02-01 00:00:00

abstract：:The knee has unique anatomy regarding the relationship between the synovial and capsular layers, with interposed fat pads at certain locations. The extrasynovial impingement and inflammation syndromes about the knee are underdiagnosed and should be included in the differential diagnosis of anterior knee pain. MR imagi...

journal_title：Magnetic resonance imaging clinics of North America

authors： Grando H,Chang EY,Chen KC,Chung CB

更新日期：2014-11-01 00:00:00

abstract：:Intravenous contrast agents are important in the performance of liver magnetic resonance (MR) imaging. These agents differ in their physical properties. These differences can be exploited to optimize imaging protocols based on indications for examination. Institutional protocols should be designed to take advantage of...

journal_title：Magnetic resonance imaging clinics of North America

authors： Bashir MR

更新日期：2014-08-01 00:00:00

abstract：:MR imaging is a noninvasive, radiation-free imaging method for evaluation of the biliary system. Continued advancements in MR imaging system hardware and sequence design, coupled with novel gadolinium chelate agents, allow for a detailed evaluation of the bile ducts and surrounding soft tissues. New hepatocyte-specifi...

journal_title：Magnetic resonance imaging clinics of North America

authors： Costello JR,Kalb B,Chundru S,Arif H,Petkovska I,Martin DR

更新日期：2014-08-01 00:00:00

abstract：:MR angiography is a powerful tool in evaluating anatomy and pathology when applied to the male pelvis. MR angiography produces high-quality images of the arterial system approaching the resolution of CT angiography, without ionizing radiation. Additional advantages include the ability to obtain angiographic images in ...

journal_title：Magnetic resonance imaging clinics of North America

authors： Sutphin PD,Kalva SP

更新日期：2014-05-01 00:00:00

abstract：:MR colonography has a high diagnostic accuracy for detecting Crohn disease (CD) activity and determining the extent and severity of lesions. In the setting of stricturing CD, MR colonography can provide a detailed map of the lesions, which is useful for clinical decision making. MR colonography can be used as an alter...

journal_title：Magnetic resonance imaging clinics of North America

authors： Rimola J,Ordás I

更新日期：2014-02-01 00:00:00

abstract：:Magnetic resonance cholangiopancreatography (MRCP) is an extremely useful tool for evaluating a wide variety of disorders affecting the pancreaticobiliary system in neonates/infants, children, and adolescents. This imaging technique has numerous distinct advantages over alternative diagnostic modalities, such as endos...

journal_title：Magnetic resonance imaging clinics of North America

authors： Egbert ND,Bloom DA,Dillman JR

更新日期：2013-11-01 00:00:00

abstract：:Data support greater sensitivity of MR imaging compared with mammography and ultrasound in high-risk populations, in particular BRCA 1 and BRCA 2 carriers. Screening ultrasound improves cancer yield versus mammography alone in high-risk patients and in patients with dense breasts and is less expensive. Drawbacks inclu...

journal_title：Magnetic resonance imaging clinics of North America

authors： Mahoney MC,Newell MS

更新日期：2013-08-01 00:00:00

abstract：:The multiparametric approach expanded the clinical applications for prostate magnetic resonance (MR) imaging to include not only staging but also a correlation with tumor aggressiveness. It can also help to guide biopsies, to achieve a higher tumor detection rate, and to better reflect the true Gleason grade. The impr...

journal_title：Magnetic resonance imaging clinics of North America

authors： Neto JA,Parente DB

更新日期：2013-05-01 00:00:00

abstract：:Acetabular labral tears are a mechanical cause of hip pain. Hip MR imaging should be performed on 1.5-T or 3-T magnets using small field-of-view and high-resolution imaging. The following should be used in the assessment for labral tear abnormalities on MR arthrography: labral morphology and contrast extension into th...

journal_title：Magnetic resonance imaging clinics of North America

authors： Blankenbaker DG,Tuite MJ

更新日期：2013-02-01 00:00:00

abstract：:MR imaging of the hip is frequently used in symptomatic patients before hip preservation surgery; it is used as a decision-making tool and as a planning tool. The MRI can confirm the preliminary working diagnosis, identify other possible sources of pain, and highlight anatomic areas that are not routinely viewed durin...

journal_title：Magnetic resonance imaging clinics of North America

authors： Botser I,Safran MR

更新日期：2013-02-01 00:00:00

abstract：:Although mammography is the standard imaging modality for detection of breast cancer, magnetic resonance (MR) imaging is a valuable adjunct and, in certain cases, is the imaging of choice. Contrast-enhanced breast MR imaging provides a noninvasive means of staging disease, assessing posttreatment response, and screeni...

journal_title：Magnetic resonance imaging clinics of North America

authors： Serrano LF,Morrell B,Mai A

更新日期：2012-11-01 00:00:00

abstract：:Perineural tumor spread (PNS) is a mode of neoplastic spread whereby tumor cells use neural conduits to escape the borders of a primary tumor. MRI is generally favored over CT for evaluating PNS, and findings include obliteration of fat within skull base foramina, enlargement and enhancement of the involved nerves, an...

journal_title：Magnetic resonance imaging clinics of North America

authors： Moonis G,Cunnane MB,Emerick K,Curtin H

更新日期：2012-08-01 00:00:00

abstract：:Internal causes of impingement are secondary to rotator cuff and capsular dysfunction and are categorized by the location of the impingement and the underlying pathophysiological or mechanical cause of the impingement. These include posterosuperior impingement, anterosuperior impingement, anterior impingement, and ent...

journal_title：Magnetic resonance imaging clinics of North America

authors： Beltran LS,Nikac V,Beltran J

更新日期：2012-05-01 00:00:00

abstract：:The main neonatal stroke syndromes discussed in this article are: arterial ischemic stroke (AIS), including perinatal AIS, and "presumed" perinatal AIS; cerebral venous thrombosis, including cortical vein and venous sinus thrombosis and germinal matrix hemorrhage/periventricular hemorrhagic infarction; and intraparenc...

journal_title：Magnetic resonance imaging clinics of North America

authors： Gunny RS,Lin D

更新日期：2012-02-01 00:00:00