scholarly journals Unusual case of hepatic metastasis in follicular thyroid carcinoma detected using I-131 whole body scintigraphy and single-photon emission computerized tomography/computerized tomography

2015 ◽  
Vol 30 (4) ◽  
pp. 358 ◽  
Author(s):  
KoramadaiKaruppusamy Kamaleshwaran ◽  
Vyshak Mohanan ◽  
Sudhakar Natarajan ◽  
AjitSugunan Shinto
Keyword(s):  
Thyroid Carcinoma ◽  
Computerized Tomography ◽  
Hepatic Metastasis ◽  
Unusual Case ◽  
Single Photon ◽  
Follicular Thyroid Carcinoma ◽  
Photon Emission ◽  
Whole Body ◽  
Single Photon Emission

Diagnostic value of 201Tl—single-photon emission computerized tomography studies in cases of posterior fossa hemangioblastomas

2001 ◽  
Vol 95 (2) ◽  
pp. 292-297 ◽  
Author(s):  
Takeo Kondo ◽  
Toshihiro Kumabe ◽  
Shin Maruoka ◽  
Takashi Yoshimoto
Keyword(s):  
Computerized Tomography ◽  
Posterior Fossa ◽  
Single Photon ◽  
Photon Emission ◽  
Magnetic Resonance Images ◽  
Thallium 201 ◽  
Homologous Region ◽  
Single Photon Emission ◽  
Content Type ◽  
Fine Print

Object. The 201Tl uptake index was evaluated for its usefulness in formulating a diagnosis of hemangioblastoma. Thallium-201—single-photon emission computerized tomography (SPECT) studies were performed in nine patients harboring hemangioblastomas in the posterior fossa and in five patients (six lesions) with gliomas in the posterior fossa. Methods. The 201Tl uptake index was defined as the ratio of mean counts of isotope per pixel in the tumor to mean counts of isotope per pixel in the homologous region of the healthy brain. The 201Tl uptake indices of the early image (TlE) and that of the delayed image (TlD) were calculated. The isotope retention index (RI) was calculated as (TlE − TlD)/TlE. The TlE was 2.7 ± 0.7 in hemangioblastomas and 2.9 ± 1.7 in gliomas (mean ± standard deviation). The TlD was 1.5 ± 0.4 in hemangioblastomas and 2.4 ± 1.6 in gliomas. There were no significant differences between hemangioblastomas and gliomas when TlEs and TlDs were compared. The isotope RI was 0.43 ± 0.07 in hemangioblastomas and 0.15 ± 0.1 in gliomas, showing a significantly higher RI in hemangioblastomas compared with gliomas (p < 0.01). Conclusions. Thallium-201 washout is significantly faster in hemangioblastomas. Hemangioblastoma is biologically benign, but contains a rich capillary network that forms a hypervascular tumor bed. Variations in its appearance on magnetic resonance images may cause difficulties in the differential diagnosis of hemangioblastoma. Thallium-201 SPECT studies can be used to distinguish hemangioblastomas from gliomas in the posterior fossa.

In Vivo Quantitative Noninvasive Imaging of Gene Transfer by Single-Photon Emission Computerized Tomography

2003 ◽  
Vol 14 (3) ◽  
pp. 255-261 ◽  
Author(s):  
Alberto Auricchio ◽  
Paul D. Acton ◽  
Markus Hildinger ◽  
Jean-Pierre Louboutin ◽  
Karl Plössl ◽  
...  
Keyword(s):  
Gene Transfer ◽  
Computerized Tomography ◽  
Single Photon ◽  
Noninvasive Imaging ◽  
Photon Emission ◽  
Single Photon Emission

scholarly journals Cerebellar Diaschisis in Pontine Ischemia. A Case Report with Single-Photon Emission Computerized Tomography

1987 ◽  
Vol 7 (1) ◽  
pp. 127-131 ◽  
Author(s):  
D. Perani ◽  
G. Lucignani ◽  
P. Pantano ◽  
P. Gerundini ◽  
G. L. Lenzi ◽  
...  
Keyword(s):  
Case Report ◽  
Computerized Tomography ◽  
Acute Phase ◽  
Single Photon ◽  
Photon Emission ◽  
Single Photon Emission ◽  
Ischemic Lesion ◽  
Blood Flows ◽  
Cerebellar Diaschisis ◽  
Tomography Scan

Regional cerebral and cerebellar blood flows were studied by N, N, N'-trimethyl- N'-(2-hydroxy-3-methyl-5-[123I]iodobenzyl)-1,3-propanediamine 2 HC1 (1-123 HIPDM) and single-photon emission computerized tomography (SPECT) in a patient with an ischemic lesion of the pons. An asymmetry of perfusion of the cerebellar hemispheres, normal on transmission computerized tomography scan, was demonstrated by SPECT studies in the early acute phase and confirmed 15 days after. This finding may be related to the interruption of the corticopontocerebellar pathways.

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