Abstract:
OBJECTIVE:To investigate the utility of 13N-ammonia PET/CT imaging in the differential diagnosis of gliomas and brain inflammations. METHODS:13N-ammonia PET/CT imaging data of 77 patients with gliomas and 34 patients with brain inflammations were retrospectively analyzed. No patients received any treatment before 13N-ammonia imaging. All the patients were diagnosed by stereotactic biopsy or clinical follow-up. Visual and semi-quantitative analysis was performed to analyze the results of 13N-ammonia imaging. Finally, the uptake ratios of each lesion were calculated and its differences among different groups were tested with one-way ANOVA. RESULTS:29.4% inflammations, 51.6% low-grade gliomas and 91.3% high-grade gliomas were positive by visual analysis in 13N-ammonia imaging. The sensitivity, specificity and accuracy for the diagnosis of gliomas were 75.3%, 55.8% and 67.8%, respectively. As for semi-quantitative analysis, the T/G ratios of inflammatory lesions, low-grade gliomas and high-grade gliomas were 0.88 ± 0.24, 1.04 ± 0.43 and 1.43 ± 0.49, respectively. One-way ANOVA revealed that the T/G ratios of high-grade gliomas were significantly higher than those of low-grade gliomas and inflammations (P < 0.05), but there was no statistical difference between low-grade gliomas and inflammations (P = 0.118). Among the inflammatory lesions, T/G ratios were not statistically different between infectious and demyelinating lesions (P > 0.05). ROC curve analysis showed that the optimal cut-off value of T/G ratio in distinguishing gliomas from inflammations was 1.21 with the AUC 0.78. The sensitivity, specificity, accuracy, PPV and NPV were 52.9%, 94.4%, 65.3%, 95.7% and 45.9%, respectively. ROC curve analysis showed that the optimal cut-off value of T/G ratio in distinguishing high-grade gliomas from low-grade gliomas was 1.06 with the AUC 0.78. The sensitivity, specificity, accuracy, PPV and NPV were 81.5%, 67.7%, 76.5%, 81.5% and 67.7%, respectively. ROC curve analysis showed that the optimal cut-off value of T/G ratio in distinguishing high-grade gliomas from low-grade gliomas and inflammations was 1.19 with the AUC 0.84. The sensitivity, specificity, accuracy, PPV and NPV were 70.4%, 85.1%, 78.5%, 79.2% and 78.1%, respectively. CONCLUSIONS:13N-ammonia imaging is effective in distinguishing high-grade gliomas from low-grade gliomas and inflammations, but its role in the differential diagnosis of low-grade gliomas and brain inflammatory lesions is limited, and the accuracy needs to be improved.
journal_name
Ann Nucl Medjournal_title
Annals of nuclear medicineauthors
Yi C,Shi X,Zhang X,Luo G,Zhang B,Zhang Xdoi
10.1007/s12149-018-1308-2subject
Has Abstractpub_date
2019-01-01 00:00:00pages
61-67issue
1eissn
0914-7187issn
1864-6433pii
10.1007/s12149-018-1308-2journal_volume
33pub_type
杂志文章abstract::Nerve growth factor (NGF) exerts various actions on neuronal and non-neuronal tissues and has potential therapeutic utility, but difficulties in using the whole protein have stimulated interest in small NGF fragments. We radioiodinated a small cyclic peptide derived from NGF using the Bolton-Hunter method [125I-C(92-9...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF03026817
更新日期:2006-10-01 00:00:00
abstract::125I-2'-iodospiperone (2'-ISP), which has a high and selective affinity for dopamine D2 receptors, produced a high myocardial accumulation of radioactivity in the early phase after intravenous injection into mice. A human scintigraphic study also showed that the myocardium was clearly visualized soon after intravenous...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF03164959
更新日期:1993-08-01 00:00:00
abstract:OBJECTIVE:To determine an appropriate threshold value for delineation of the target in positron emission tomography (PET) and to investigate whether PET can delineate an internal target volume (ITV), a series of phantom studies were performed. METHODS:An ellipse phantom (background) was filled with 1028 Bq/ml of [(18)...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-008-0166-8
更新日期:2008-08-01 00:00:00
abstract::A 48-year-old male patient was admitted to our hospital with dyspnea accompanied by orthopnea. Chest x-rays showed a cardiothoracic ratio of 68% and pulmonary congestion. He was diagnosed with dilated cardiomyopathy. Beta-Blocker (carvedilol) therapy was initiated on Day 22 of the disease using a small initial dose. H...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF02984613
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVES:Visceral leishmaniasis (VL) is the most severe manifestation of the infection caused by the protozoan Leishmania, recently on increase in Italy and Spain. The aim of the study was to describe FDG uptake patterns in VL patients (pts) who underwent 18F-FDG PET/CT. METHODS:A retrospective monocentric study of ...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-019-01381-6
更新日期:2019-09-01 00:00:00
abstract::We have assembled data from patients with fever of unknown origin who underwent gallium scintigraphy during the past 5 years in order to obtain a more current sampling of patients, and evaluated the role of gallium scintigraphy retrospectively. Of the 36 patients studied, gallium scintigraphy was positive and contribu...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF03164611
更新日期:1991-03-01 00:00:00
abstract::We compared single-sample methods, proposed by Russell et al. and Bubeck et al., and camera-based methods in calculating 99mTc-MAG3 clearance, and determined camera-based methods that provide estimates comparable to those measured by the Russell method. Twenty-one patients underwent 99mTc-MAG3 renal scintigraphy, and ...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF02988691
更新日期:2000-10-01 00:00:00
abstract::Alzheimer's disease (AD) is on the rise all over the world, and brings with it great challenges to medical care and heavy burdens to family and society. Accurate diagnosis and differential diagnosis are of great importance. Tau positron emission tomography (PET) might offer novel insights and be of great assistance in...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章,评审
doi:10.1007/s12149-020-01566-4
更新日期:2021-01-18 00:00:00
abstract:PURPOSE:This study aimed at demonstrating the feasibility of retrospectively fused (18)F FDG-PET and MRI (PET/MRI fusion image) in diagnosing pancreatic tumor, in particular differentiating malignant tumor from benign lesions. In addition, we evaluated additional findings characterizing pancreatic lesions by FDG-PET/MR...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-013-0719-3
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVE:To design, build, and evaluate an animal PET scanner, which can be used with non-human primates under conscious condition, incorporating flat-panel position-sensitive photomultiplier tubes (PS-PMTs). METHODS:The system contains 30 detector modules, each having two PS-PMTs and 16×18 lutetium–yttrium oxyortho-...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-013-0772-y
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:Vesicoureteral reflux (VUR) is a major risk factor for recurrent symptomatic urinary tract infection (UTI) in pediatric patients. In addition, dimercaptosuccinic acid renal scintigraphy (DMSA) is an important diagnostic modality of VUR. However, the value of DMSA for predicting recurrent pediatric UTI has not...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-019-01379-0
更新日期:2019-09-01 00:00:00
abstract:OBJECTIVE:The aim of this study is to establish the optimal regions of interest (ROIs) in anatomically normalized I-123 FP-CIT SPECT images for the quantification of dopamine transporter binding. METHODS:The subjects comprised 16 normal controls and 14 Parkinsonian patients. All of the normal control subjects underwen...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-016-1107-6
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:Dementia with Lewy bodies (DLB) is generally characterized by a decrease in regional cerebral blood flow (rCBF) in the occipital lobe. However, not all patients with DLB have this feature. We explored characteristics of rCBF pattern changes to improve the identification of DLB, in addition to occipital hypope...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-008-0193-5
更新日期:2008-12-01 00:00:00
abstract::Morphine intervention in cholescintigraphy decreases imaging time to diagnose acute cholecystitis. Not infrequently we observe duodenogastric reflux during scintigraphy with and without morphine intervention. To evaluate occurrence of duodenogastric reflux related to morphine, we reviewed 55 patients who underwent cho...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF03168405
更新日期:1995-11-01 00:00:00
abstract::In practical positron emission tomography (PET) diagnosis, a shortened protocol is preferred for patients with brain disorders. In this study, the applicability of a shortened protocol as an alternative to the 90-min PET scan with [(11)C]SA4503 for quantitative sigma(1) receptor measurement was investigated. Tissue ti...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-007-0088-x
更新日期:2008-02-01 00:00:00
abstract:RATIONALE:Myocardial perfusion SPECT is a commonly performed, well established, clinically useful procedure for the management of patients with coronary artery disease. However, the attenuation of photons from myocardium impacts the quantification of infarct sizes. CT-Attenuation Correction (AC) potentially resolves th...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-017-1211-2
更新日期:2017-12-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to assess I-131 biokinetics in thyroid cancer and remnant tissue in patients with differentiated thyroid cancer using whole-body scan (WBS) and SPECT images acquired after I-131 therapy. The influence of thyroid stimulating hormone (TSH) stimulation method on the kinetics was also ev...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-017-1188-x
更新日期:2017-10-01 00:00:00
abstract:OBJECTIVE:Chemobrain is a recently proposed pathological entity. 18F-FDG PET/CT can show objective abnormalities to explain brain disorders caused by chemotherapy, although no study has investigated these phenomena in children to date. The main objective of the present study was to examine quantitatively the effects of...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-019-01363-8
更新日期:2019-08-01 00:00:00
abstract::This case report illustrates the dynamic and static renal scintigraphic images of a patient with an unusual large diverticulum of the renal pelvis. The initial diagnosis by intravenous pyelography (IVP) and ultrasonographic (US) examination was a renal pelvic diverticulum of the left kidney, and the patient was referr...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF02985963
更新日期:2004-12-01 00:00:00
abstract::Bone scintigraphy is often performed to assess the response to systemic therapy of bone metastasis from prostate cancer. We examined the changes in bone scintigraphic findings and the agreement with AIP, AcP, or other tumor markers measured in the follow-up of patients with known bone metastasis after hormonal therapy...
journal_title:Annals of nuclear medicine
pub_type: 临床试验,杂志文章
doi:10.1007/BF03165024
更新日期:1994-11-01 00:00:00
abstract:AIM:The purpose of the study was to determine the lung toxicity caused by amiodarone (AD) and bleomycin (BLM) in rats, by means of Tc-99m HMPAO lung scintigraphy. METHODS:Thirty albino rats were randomly divided into five groups. After AD or BLM was dissolved with isotonic saline (SF), a 0.5 ml solution was applied to...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-013-0722-8
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:The presence of central lymph node (LN) metastasis increases the risk of cervical LN recurrence or distant metastasis in patients with papillary thyroid microcarcinoma (PTMC). We investigated the value of preoperative (18)F-fluoro-2-deoxy-D-glucose-positron emission tomography (FDG PET)-computerized tomography ...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-012-0594-3
更新日期:2012-07-01 00:00:00
abstract:PURPOSE:To compare the diagnostic accuracy of whole-body PET/CT and integrated PET/MR in relation to the total scan time durations. METHODS:One hundred and twenty-three (123) patients (40 males and 83 females; mean age 59.6 years; range 20-83 years) with confirmed primary cancer and clinical suspicion of metastatic di...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-015-1050-y
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVES:Although dual-energy (DE) acquisition with conventional 201Tl myocardial perfusion SPECT has several advantages such as improved attenuation of the inferior wall and increased acquisition counts, the characteristics of IQ-SPECT have not been fully evaluated. We evaluate the difference of characteristics betw...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-017-1177-0
更新日期:2017-08-01 00:00:00
abstract::We investigated the uptake and washout of I-123-metaiodobenzylguanidine (MIBG) in neuronal (both intra- and extravesicular) and non-neuronal sites in the heart and its relationship to renal clearance. Acute renal failure was induced in rats by ligating the renal vessels, and the findings were compared with those of sh...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF03165394
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVE:Mantle cell lymphoma (MCL) is an aggressive lymphoma sub-type with poor prognosis and high 18F-FDG avidity at PET/CT; nowadays, no validated criteria for PET/CT in treatment response evaluation and prediction of outcome are present. The aim of study was to investigate whether the metabolic PET/CT features may...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-019-01354-9
更新日期:2019-07-01 00:00:00
abstract::A case of Plummer's disease that spontaneously progressed to hypothyroidism is presented. A 49-year-old female visited our hospital because of a 3 kg decrease in body weight during the previous month and a painless nodule in the right anterior area of her neck. A diagnosis of Plummer's disease was made based on the re...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/BF03164940
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:To evaluate the usefulness of a breath-holding (BH) (18)F-2-fluoro-2-deoxy-D-glucose positron emission tomography ((18)F-FDG-PET) technique for PET/computed tomography (CT) scanning of pulmonary lesions near the diaphragm, where image quality is influenced by respiratory motion. METHODS:In a basic study, sim...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-008-0206-4
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVE:Image segmentation is an essential step in quantifying the extent of reduced or absent lung function. The aim of this study is to develop and validate a new tool for automatic segmentation of lungs in ventilation and perfusion SPECT images and compare automatic and manual SPECT lung segmentations with referen...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-017-1223-y
更新日期:2018-02-01 00:00:00
abstract:OBJECTIVE:We digested anti-MUC1 monoclonal antibody PR81 to produce F(ab')₂ fragments. A comparison was performed between the two radiolabeled PR81 and F(ab')₂ fragments for breast tumor imaging in a mouse model. METHODS:The optimum conditions for pepsin digestion of PR81 were investigated in terms of enzymes: antibod...
journal_title:Annals of nuclear medicine
pub_type: 杂志文章
doi:10.1007/s12149-010-0434-2
更新日期:2011-02-01 00:00:00