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To what extent can diverse types of liver lesions mimic hemangiomas? : a retrospective quantitative analysis of masses found to be positive in SPECT/CT with labeled blood cells : a preliminary report
liver hemangioma
SPECT/CT
quantitative analysis
Tc-99m
labeled red blood cells
Background: Although specificity of SPECT/CT examination using technetium-99m radiolabeled red blood cells (Tc-99m-RBC) for detection of liver hemangiomas is very high, it is still not perfect. It is possible to overlook a malignancy. Moreover, the difference in accumulation of RBCs between a hemangioma and uninvolved liver remains unknown. The aim of the study is to determine the quotients of accumulation of Tc-99m-RBC in hemangiomas and in normal liver parenchyma (HEM/liv), and to verify, whether the quotient could be potentially helpful in distinguishing hemangiomas from other RBC-accumulating liver masses. Material/Methods: 34 liver lesions larger than 1.5 cm classified scintigraphically (qualitatively) in our Department as either typical or suspicious of hemangioma 1.5-4 years earlier were enrolled in this retrospective study. Their SPECT/CT images were acquired 1 hour after in vivo labeling of RBCs with Tc-99m. In reconstructed images, ellipsoidal regions of interest (ROIs) with diameters of about 1.5 cm were created in the assessed lesions (HEM) and in the uninvolved liver parenchyma (liv). The HEM/liv quotients were calculated for each mass. The results were compared with radiological data. Results: 31 lesions were found to be clinically and radiologically typical for hemangiomas, their HEM/liv ratios were at least 1.6 (smaller masses) or 1.8 (larger masses). One lesion with HEM/liv ratio equal to 1.21 was classified as metastasis. Two lesions with HEM/liv 1.42 and 1.46 were classified as benign foci other than hemangioma. Conclusions: The quantitative analysis can be preliminarily proposed as a helpful tool in the assessment of possible liver hemangiomas.
cris.lastimport.scopus | 2024-04-24T05:40:12Z | |
dc.abstract.en | Background: Although specificity of SPECT/CT examination using technetium-99m radiolabeled red blood cells (Tc-99m-RBC) for detection of liver hemangiomas is very high, it is still not perfect. It is possible to overlook a malignancy. Moreover, the difference in accumulation of RBCs between a hemangioma and uninvolved liver remains unknown. The aim of the study is to determine the quotients of accumulation of Tc-99m-RBC in hemangiomas and in normal liver parenchyma (HEM/liv), and to verify, whether the quotient could be potentially helpful in distinguishing hemangiomas from other RBC-accumulating liver masses. Material/Methods: 34 liver lesions larger than 1.5 cm classified scintigraphically (qualitatively) in our Department as either typical or suspicious of hemangioma 1.5-4 years earlier were enrolled in this retrospective study. Their SPECT/CT images were acquired 1 hour after in vivo labeling of RBCs with Tc-99m. In reconstructed images, ellipsoidal regions of interest (ROIs) with diameters of about 1.5 cm were created in the assessed lesions (HEM) and in the uninvolved liver parenchyma (liv). The HEM/liv quotients were calculated for each mass. The results were compared with radiological data. Results: 31 lesions were found to be clinically and radiologically typical for hemangiomas, their HEM/liv ratios were at least 1.6 (smaller masses) or 1.8 (larger masses). One lesion with HEM/liv ratio equal to 1.21 was classified as metastasis. Two lesions with HEM/liv 1.42 and 1.46 were classified as benign foci other than hemangioma. Conclusions: The quantitative analysis can be preliminarily proposed as a helpful tool in the assessment of possible liver hemangiomas. | pl |
dc.contributor.author | Świętaszczyk, Cyprian | pl |
dc.contributor.author | Pilecki, Stanisław E. | pl |
dc.date.accessioned | 2017-09-05T10:12:03Z | |
dc.date.available | 2017-09-05T10:12:03Z | |
dc.date.issued | 2013 | pl |
dc.date.openaccess | 0 | |
dc.description.accesstime | w momencie opublikowania | |
dc.description.additional | Bibliogr. s. 25-26 | pl |
dc.description.number | 4 | pl |
dc.description.physical | 21-26 | pl |
dc.description.version | ostateczna wersja wydawcy | |
dc.description.volume | 78 | pl |
dc.identifier.doi | 10.12659/PJR.889225 | pl |
dc.identifier.eissn | 1899-0967 | pl |
dc.identifier.issn | 1733-134X | pl |
dc.identifier.uri | http://ruj.uj.edu.pl/xmlui/handle/item/43837 | |
dc.language | eng | pl |
dc.language.container | eng | pl |
dc.rights | Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 3.0 Polska | * |
dc.rights.licence | CC-BY-NC-ND | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/pl/legalcode | * |
dc.share.type | otwarte czasopismo | |
dc.subject.en | liver hemangioma | pl |
dc.subject.en | SPECT/CT | pl |
dc.subject.en | quantitative analysis | pl |
dc.subject.en | Tc-99m | pl |
dc.subject.en | labeled red blood cells | pl |
dc.subtype | Article | pl |
dc.title | To what extent can diverse types of liver lesions mimic hemangiomas? : a retrospective quantitative analysis of masses found to be positive in SPECT/CT with labeled blood cells : a preliminary report | pl |
dc.title.journal | Polish Journal of Radiology | pl |
dc.type | JournalArticle | pl |
dspace.entity.type | Publication |