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A Radial Magnetic Resonance Imaging Method for Imaging Abdominal Neoplasms

  • Maria I. Altbach
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Part of the Methods of Cancer Diagnosis, Therapy and Prognosis book series (HAYAT, volume 5)

Abdominal magnetic resonance imaging (MRI) has progressed rapidly during the last 12 years. The development of new hardware and software has allowed the implementation of faster and better pulse sequences, and MRI is now used routinely in the clinic as a complement to, or as the method of choice over other imaging techniques such as ultrasound (US) and computed tomography (CT). Magnetic resonance imaging combines good spatial resolution, lack of radiation, non-inva-siveness, and three-dimensional imaging capability. This method provides useful information for the detection and characterization of focal liver lesions that cannot be diagnosed with US or CT (Robinson, 2000). In particular for small lesions (< 1 cm2), studies have shown that the specificity and sensitivity of MRI is better than US and CT (Ward et al., 2005).

The standard MRI protocol for liver and most abdominal imaging applications consists of acquiring T1-weighted, T2-weighted, and contrast-enhanced images. All these methods are used for the detection of lesions but each has a different role in terms of lesion characterization. T1-weighted images acquired with lipid and water in- and out-of-phase, respectively, are used primarily for the characterization of neoplasms such as adenomas, focal nodular hyperplasia, regenerative nodules, well-differentiated hepatocellular carcinoma, nodular regenerative hyperpla-sia, renal clear cell carcinoma, and angi-omyolipoma (Ichikawa and Araki, 1999; Outwater et al., 1998).

Keywords

Focal Nodular Hyperplasia Breath Hold Focal Liver Lesion Renal Clear Cell Carcinoma Liver Neoplasm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science + Business Media B.V. 2009

Authors and Affiliations

  • Maria I. Altbach
    • 1
  1. 1.Department of RadiologyUniversity of ArizonaTucsonUSA

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