Magnetic resonance lymphangiography
Updates to Article Attributes
Magnetic Resonance Lymphangiographyresonance lymphangiography (MRL) is an imaging technique used to visualise and map lymphatic channels and their course. The technique is used for treatment planning in supermicrosurgical procedures, including lymphaticovenous anastomosis, lymphaticolymphatic bypass and vascularized lymph node transfers.
The technique requires an MRI with a field strength of 1.5T.5 T or greater MRI and access to a multi-elementmultielement coil. Both phased-array peripheral vascular coils and body array coils are reported to provide good signal-to-noise ratioratios1. A 0.1 mmol/kg body weight dose mixture of gadobenate dimeglumine and 1% lignocaine HCLlidocaine is injected intradermally or subcutaneously in the region of interest. The patient is subsequently imaged using a 3D fast spoiled gradient-echo T1-weighted sequence with a fat-saturation technique to faclilitatefacilitate visualisation of lymphatic channelsthe lymphatics. Subtraction of a pre-contrastprecontrast study from a post-contrast study has also been reported1 in literature as a method to increase the apparent contrast in the examination1.
-<p><strong>Magnetic Resonance Lymphangiography (MRL) </strong>is an imaging technique used to visualise and map lymphatic channels and their course. The technique is used for treatment planning in supermicrosurgical procedures including lymphaticovenous anastomosis, lymphaticolymphatic bypass and vascularized lymph node transfers. </p><p>The technique requires a 1.5T or greater MRI and access to a multi-element coil. Both phased-array peripheral vascular coils and body array coils are reported to provide good signal-to-noise ratio<sup>1</sup>. A 0.1 mmol/kg body weight dose mixture of gadobenate dimeglumine and 1% lignocaine HCL is injected intradermally or subcutaneously in the region of interest. The patient is subsequently imaged using a 3D fast spoiled gradient-echo T1-weighted sequence with a fat-saturation technique to faclilitate visualisation of lymphatic channels. Subtraction of a pre-contrast study from a post-contrast study has also been reported<sup>1 </sup>in literature as a method to increase the apparent contrast in the examination.</p><p> </p><p> </p>- +<p><strong>Magnetic resonance lymphangiography (MRL) </strong>is an imaging technique used to visualise and map lymphatic channels and their course. The technique is used for treatment planning in <a href="/articles/supermicrosurgery">supermicrosurgical procedures</a>, including lymphaticovenous anastomosis, lymphaticolymphatic bypass and vascularized lymph node transfers. </p><p>The technique requires an <a href="/articles/mri-2">MRI</a> with a field strength of 1.5 T or greater and access to a multielement coil. Both phased-array peripheral vascular coils and body array coils are reported to provide good <a href="/articles/signal-to-noise-ratio-1">signal-to-noise ratios</a> <sup>1</sup>. A 0.1 mmol/kg body weight dose mixture of <a href="/articles/gadobenate-dimeglumine">gadobenate dimeglumine</a> and 1% lidocaine is injected intradermally or subcutaneously in the region of interest. The patient is subsequently imaged using a <a href="/articles/spoiled-gradient-echo-mri-3">3D fast spoiled gradient-echo T1-weighted sequence</a> with a <a href="/articles/fat-suppressed-imaging">fat-saturation technique</a> to facilitate visualisation of the lymphatics. <a href="/articles/subtraction-mri">Subtraction</a> of a precontrast study from a post-contrast study has also been reported<sup> </sup>in literature as a method to increase the apparent contrast in the examination <sup>1</sup>.</p>
Systems changed:
- Haematology
- Oncology
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