Non-invasive investigation of gastrointestinal functions with magnetic resonance imaging: towards an "ideal" investigation of gastrointestinal function

Schwizer, W .; Fox, M.; Steingätter, A.
June 2003
Gut;Jun2003 Supplement 4, Vol. 52, piv34
Academic Journal
Gastrointestinal (GI) function is complex and physiological measurements are subject to a variety of technical difficulties and practical limitations. The ideal technique would be non-invasive, widely available, convenient, and reliable and would not expose the subject to ionising radiation. It would permit direct assessment of GI function in the postprandial as well as the resting state, and be able to differentiate between food, secretion, and air in the lumen: GI structure and function are interdependent and the ideal technique would permit simultaneous assessment of these factors. Finally, the bowel operates as a functional whole and assessment of the GI tract proximal and distal to the area of interest is desirable. In this article the authors summarise the development and validation of magnetic resonance imaging techniques that overcome many of the deficiencies of existing methods, and have many characteristics of the "ideal" investigation of GI function.


Related Articles

  • Advances in pediatric body MRI. Vasanawala, Shreyas S.; Lustig, Michael // Pediatric Radiology;Sep2011, Vol. 41, p549 

    MRI offers an alternative to CT, and thus is central to an ALARA strategy. However, long exam times, limited magnet availability, and motion artifacts are barriers to expanded use of MRI. This article reviews developments in pediatric body MRI that might reduce these barriers: high field...

  • Health effects of ionizing radiation from diagnostic CT imaging: Consideration of alternative imaging strategies. Martin, Diego R.; Semelka, Richard C. // Applied Radiology;Mar2007, Vol. 36 Issue 3, p20 

    The article presents suggestions for minimizing the negative effects of ionizing radiation generated by computed tomography (CT) scanner and other diagnostic imaging machines. Ionizing radiation damages and modifies cellular deoxyribonucleic acid (DNA), leading to neoplasms. The use of...

  • Preparation and biodistribution study of 99mTc-EC-Annexin-SPIO as a tracer of radiation induced apoptosis in mice model. Haeri, Abolghasem; Rajabi, Hossein; Johari, Fariba; Akhlaghpoor, Shahram // Iranian Journal of Nuclear Medicine; 

    Introduction: Apoptosis is a major consequence of ionizing radiation in proliferative tissues and quantification of the apoptotic cells could be helpful for noninvasive assessment and estimation of the radiation absorbed dose. Annexin V conjugated with super paramagnetic iron oxide nanoparticles...

  • "Black Bone" MRI: a potential non-ionizing method for three-dimensional cephalometric analysis--a preliminary feasibility study. Eley, K. A.; Watt-Smith, S. R.; Golding, S. J. // Dentomaxillofacial Radiology;2013, Vol. 42 Issue 10, p1 

    Objectives: CT offers a three-dimensional solution to the inaccuracies associated with lateral cephalogram-based cephalometric analysis. However, it is associated with significant concerns regarding ionizing radiation exposure. MRI offers a non-ionizing alternative, but this has been less well...

  • MRI for clinically suspected pediatric appendicitis: an implemented program. Moore, Michael; Gustas, Cristy; Choudhary, Arabinda; Methratta, Sosamma; Hulse, Michael; Geeting, Glenn; Eggli, Kathleen; Boal, Danielle // Pediatric Radiology;Sep2012, Vol. 42 Issue 9, p1056 

    Background: Emergent MRI is now a viable alternative to CT for evaluating appendicitis while avoiding the detrimental effects of ionizing radiation. However, primary employment of MRI in the setting of clinically suspected pediatric appendicitis has remained significantly underutilized....

  • Evaluation of acute renal colic: a comparison of non-contrast CT versus 3-T non-contrast HASTE MR urography. Semins, M.; Feng, Z.; Trock, B.; Bohlman, M.; Hosek, W.; Matlaga, B. // Urolithiasis;Feb2013, Vol. 41 Issue 1, p43 

    With the introduction of a 3-T scanner, magnetic resonance urography (MRU) may be an alternative imaging modality for evaluation of acute renal colic. We performed a prospective study to compare the performance of computed tomography (CT) with half-Fourier single shot turbo spin-echo (HASTE) MRU...

  • Real-Time Magnetic Resonance Imaging (MRI) during Active Wrist Motion—Initial Observations. Boutin, Robert D.; Buonocore, Michael H.; Immerman, Igor; Ashwell, Zachary; Sonico, Gerald J.; Szabo, Robert M.; Chaudhari, Abhijit J. // PLoS ONE;Dec2013, Vol. 8 Issue 12, p1 

    Background: Non-invasive imaging techniques such as magnetic resonance imaging (MRI) provide the ability to evaluate the complex anatomy of bone and soft tissues of the wrist without the use of ionizing radiation. Dynamic instability of wrist – occurring during joint motion – is a...

  • Audit on the use of radiological investigations in the management of rhinosinusitis. Grech, Stephan; McKearney, Richard M.; Borg-Xuereb, Herman // Malta Medical Journal;2013, Vol. 25 Issue 2, p19 

    Objectives: The aim of this audit is to establish the cost to the Maltese health system from the use of radiological imaging in managing rhinosinusitis and to identify areas in which these costs can be minimised by following guidelines on the management of rhinosinusitis. Methods: All plain...

  • Non-invasive assessment of kidney oxygenation: a role for BOLD MRI. Mason, R. P. // Kidney International;Jul2006, Vol. 70 Issue 1, p10 

    Blood oxygen level-dependent (BOLD) contrast magnetic resonance imaging (MRI) has been applied to investigate kidney oxygenation in human patients. These investigations reflect the progress of radiology from a primarily anatomic discipline to one that provides insight into tissue physiology. In...


Read the Article


Sign out of this library

Other Topics