Abstract:
PURPOSE:The purpose of this study was to assess the value of the spatial heterogeneity of somatostatin receptor (SSR) volume, quantified as asphericity (ASP), and to predict response to peptide receptor radionuclide therapy (PRRT) in patients with metastatic gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN). PROCEDURES:From June 2011 to May 2013, patients suffering from GEP-NEN who underwent pretherapeutic [111In-DTPA0]octreotide scintigraphy (Octreoscan®) prior to [177Lu-DOTA0-Tyr3]octreotate ([177Lu]DOTATATE)-PRRT were enrolled in this retrospective evaluation. SSR expression in 20 NEN patients was qualitatively and quantitatively assessed using the Krenning score, the metastasis to liver uptake ratio (M/L ratio), and ASP at baseline. Response to PRRT was evaluated based on lesions, which were classified as responding lesions (RL) and non-responding lesions (NRL) after 4- and 12-month follow-ups. The values of the Krenning score, M/L ratio, and ASP for response prediction were compared by using the Mann-Whitney U test, Kruskal-Wallis test, and receiver operating characteristic (ROC) curves. RESULTS:Seventy-seven metastases (liver, n = 40; lymph node, n = 24; bone, n = 11; pancreas, n = 2) showed SSR expression. A higher ASP level was significantly associated with poorer response at both time points. ROC analyses revealed the highest area under the curve (AUC) for discrimination between RL and NRL for ASP after 4 months (AUC 0.97; p = 0.019) and after 12 months (AUC 0.96; p < 0.001), followed by the Krenning score (AUC 0.74; p = 0.082 and AUC 0.85; p < 0.001, respectively) and M/L ratio (AUC 0.77; p = 0.107 and AUC 0.82; p < 0.001). The optimal cutoff value for ASP was 5.12 % (sensitivity, 90 %; specificity, 93 %). CONCLUSION:Asphericity of SSR-expressing lesions in pretherapeutic single-photon emission computed tomography with integrated computed tomography (SPECT/CT) is a promising parameter for predicting response to PRRT in gastroenteropancreatic neuroendocrine neoplasms.
journal_name
Mol Imaging Bioljournal_title
Molecular imaging and biologyauthors
Wetz C,Apostolova I,Steffen IG,Hofheinz F,Furth C,Kupitz D,Ruf J,Venerito M,Klose S,Amthauer Hdoi
10.1007/s11307-016-1018-xsubject
Has Abstractpub_date
2017-06-01 00:00:00pages
437-445issue
3eissn
1536-1632issn
1860-2002pii
10.1007/s11307-016-1018-xjournal_volume
19pub_type
杂志文章abstract:PURPOSE:Previous reports confirmed that (2S,4R)-4-[18F]Fluoroglutamine ([18F]GLN) accumulated in bone and bone marrow. This study investigates the potential of using [18F]GLN positron emission tomography (PET) to monitor changes of bone marrow activity after chemotherapy (myelosuppression). PROCEDURES:Bone marrow inhi...
journal_title:Molecular imaging and biology
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journal_title:Molecular imaging and biology
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-015-0849-1
更新日期:2015-12-01 00:00:00
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journal_title:Molecular imaging and biology
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journal_title:Molecular imaging and biology
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doi:10.1016/j.mibio.2004.09.002
更新日期:2004-11-01 00:00:00
abstract::In vivo imaging of the central nervous system (CNS) neuroreceptors in humans began was used in the early 1980s. Now, some twenty years later, the success of radiopharmaceutical imaging is still often one based on empiricism and serendipity. Nevertheless, a number of factors can be identified based on the robot experie...
journal_title:Molecular imaging and biology
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doi:10.1007/s11307-020-01565-x
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更新日期:2020-10-01 00:00:00
abstract:INTRODUCTION:Technetium (Tc) methylene diphosphonate (MDP) has been the standard method for bone scintigraphy for three decades. (18)F sodium fluoride ((18)F NaF) positron emission tomography (PET)/computed tomography (CT) has better resolution and is considered superior. The role of 2-deoxy-2-[(18)F]fluoro-D-glucose (...
journal_title:Molecular imaging and biology
pub_type: 临床试验,杂志文章
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更新日期:2010-08-01 00:00:00
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更新日期:2011-08-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-009-0219-y
更新日期:2009-11-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-020-01572-y
更新日期:2021-01-14 00:00:00
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pub_type: 杂志文章
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更新日期:2016-10-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s11307-019-01404-8
更新日期:2020-04-01 00:00:00
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更新日期:2002-01-01 00:00:00
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更新日期:2020-11-30 00:00:00
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pub_type: 杂志文章
doi:10.1007/s11307-011-0503-5
更新日期:2012-08-01 00:00:00
abstract::The cyclooxygenase-2 (COX-2) gene plays a role in a wide variety of normal physiologic pathways and is a major target of pharmacologic intervention in a large number of pathophysiologic contexts, including pain, fever, inflammation, and cancer. Expression of the COX-2 gene is induced in a wide range of cells, in respo...
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pub_type: 杂志文章
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更新日期:2003-07-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-006-0073-0
更新日期:2007-01-01 00:00:00
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更新日期:2014-12-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
doi:10.1007/s11307-017-1115-5
更新日期:2018-04-01 00:00:00
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journal_title:Molecular imaging and biology
pub_type: 杂志文章
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更新日期:2006-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s11307-018-1275-y
更新日期:2019-08-01 00:00:00
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