Application of ⁹⁹mTc-SPECT-CT and carbon nanoparticles suspension injection in sentinel lymph node mapping for rectal cancer / 中华胃肠外科杂志
Chinese Journal of Gastrointestinal Surgery
;
(12): 352-355, 2011.
Article
in Chinese
| WPRIM
| ID: wpr-237117
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the accuracy of sentinel lymph node mapping(SLM) in patients with rectal cancer by single-photon emission computed tomography (SPECT-CT) lymphoscintigraphy and carbon nanoparticles suspension injection.</p><p><b>METHODS</b>Twelve patients with clinical T(1-2)N(0)M(0) rectal cancer were selected and locally injected with technetium-(99m)sulfur-colloid and carbon nanoparticles suspension by endoscope one day before surgery, followed by SPECT-CT scanning 1, 3 and 5 hours later. Radioactive isotope(RI) uptake of each sentinel node(SN) basin with location preoperatively determined by SPECT-CT was postoperatively calculated using gamma probe. Nodes with the highest RI uptake, the number of which was also pre-determined by SPECT-CT, was defined as SNs. Immunohistochemical cytokeratin staining was performed for all the SNs and non-SNs.</p><p><b>RESULTS</b>The rate of sentinel node detection was 91.7%(11/12) with at least one SN(1-3) per patient. Ten cases showed metastasis-negative in SNs as well as all the resected regional nodes by immunohistochemical cytokeratin staining. Only one patient had positive nodes in both SN and non-SNs. The accuracy of SLM was 100%.</p><p><b>CONCLUSION</b>SPECT-CT lymphoscintigraphy and carbon nanoparticles suspension injection can effectively detect the anatomic location and number of sentinel nodes, and improve the accuracy of SLM for rectal cancer.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Rectal Neoplasms
/
Carbon
/
Diagnostic Imaging
/
Tomography, X-Ray Computed
/
Tomography, Emission-Computed, Single-Photon
/
Sentinel Lymph Node Biopsy
/
Nanostructures
/
Diagnosis
/
Methods
Type of study:
Diagnostic study
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Gastrointestinal Surgery
Year:
2011
Type:
Article
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