摘要:

Hepatic MRI has become a useful imaging modality in recent years. As with all diagnostic imaging, the seanning techniques available for hepatic MRI are manifold and complex. The article discusses these techniques and their practical applications. Contrast agents and the MR appearances of various pathologic hepatic entities are also reviewed.

ISSN:0899-3459    

出版商:OVID    

年代:1990

数据来源: OVID

摘要:

Renal and adrenal anatomy, both normal and abnormal, are well depicted by MRI Although MRI is not a sensitive modality for detection of renal cell carcinoma, it has clinical utility for evaluation of vascular involvement or direct extension of neoplasm into adjacent organs when CT findings are equivocal. Use of signal characteristics has not been useful in differentiating simple from complex cystic renal masses or among the various causes of medical renal disease and renal transplant failure. Similarly, signal characteristics are not sufficiently reliable for differentiating benign from malignant adrenal masses. MRI is useful, however, for detection and localization of pheochromocytomas. MRI plays a major role in imaging of children with neuroblastoma and Wilms' tumor and may obviate other, often more invasive, examinations in these cases.

ISSN:0899-3459    

出版商:OVID    

年代:1990

数据来源: OVID

摘要:

This article summarizes the applications of MRI to gynecology, with particular emphasis on the evaluation of adenomyosis, leiomyomas, ovarian masses, and uterine and cervical cancer.

ISSN:0899-3459    

出版商:OVID    

年代:1990

数据来源: OVID

摘要:

Prostate carcinoma is the most common cancer in men and the second most lethal malignancy among the American male population. Nevertheless, it is potentially curable if detected early and treated appropriately. Treatment options vary depending on the extent (stage) of the cancer. MRI has no role as a screening method for prostatic carcinoma because it is expensive, time consuming, and unable to differentiate benign from malignant disease, but it can detect early prostatic cancers in patients with known tumor and can accurately stage these tumors. MRI is becoming the imaging modality of choice for local staging of prostate cancer and is rapidly replacing CT and ultrasonography for this purpose. Treatment protocols for bladder carcinoma also depend on the stage of the tumor. Clinical staging of bladder cancer has been limited. MRI is as good as or better than CT in bladder tumor staging when extravesical tumor involvement is present. MRI also has the potential to become useful in determining the depth of wall invasion in tumors confined to the bladder.

ISSN:0899-3459    

出版商:OVID    

年代:1990

数据来源: OVID

ISSN:0899-3459    

出版商:OVID    

年代:1990

数据来源: OVID

ISSN:0899-3459    

出版商:OVID    

年代:1990

数据来源: OVID