scholarly journals A RECURRENT BREAST CANCER CASE WITH BONE METASTASES DETECTED BY WHOLE BODY POSITRON EMISSION TOMOGRAPHY (PET)

Author(s):  
Akira OKUMURA ◽  
Yutaka TOKUDA ◽  
Masatoshi OHTA ◽  
Tomoo TAJIMA ◽  
Seiei YASUDA ◽  
...  
2004 ◽  
Vol 40 (10) ◽  
pp. 1545-1553 ◽  
Author(s):  
F.J van Oost ◽  
J.J.M van der Hoeven ◽  
O.S Hoekstra ◽  
A.C Voogd ◽  
J.W.W Coebergh ◽  
...  

2020 ◽  
Vol 7 ◽  
Author(s):  
Yoko Satoh ◽  
Kenji Hirata ◽  
Daiki Tamada ◽  
Satoshi Funayama ◽  
Hiroshi Onishi

Objective: This retrospective study aimed to compare the ability to classify tumor characteristics of breast cancer (BC) of positron emission tomography (PET)-derived texture features between dedicated breast PET (dbPET) and whole-body PET/computed tomography (CT).Methods: Forty-four BCs scanned by both high-resolution ring-shaped dbPET and whole-body PET/CT were analyzed. The primary BC was extracted with a standardized uptake value (SUV) threshold segmentation method. On both dbPET and PET/CT images, 38 texture features were computed; their ability to classify tumor characteristics such as tumor (T)-category, lymph node (N)-category, molecular subtype, and Ki67 levels was compared. The texture features were evaluated using univariate and multivariate analyses following principal component analysis (PCA). AUC values were used to evaluate the diagnostic power of the computed texture features to classify BC characteristics.Results: Some texture features of dbPET and PET/CT were different between Tis-1 and T2-4 and between Luminal A and other groups, respectively. No association with texture features was found in the N-category or Ki67 level. In contrast, receiver-operating characteristic analysis using texture features' principal components showed that the AUC for classification of any BC characteristics were equally good for both dbPET and whole-body PET/CT.Conclusions: PET-based texture analysis of dbPET and whole-body PET/CT may have equally good classification power for BC.


1999 ◽  
Vol 17 (8) ◽  
pp. 2381-2381 ◽  
Author(s):  
Holger Schirrmeister ◽  
Albrecht Guhlmann ◽  
Jörg Kotzerke ◽  
Claudia Santjohanser ◽  
Thorsten Kühn ◽  
...  

PURPOSE: Previous studies have shown that bone metastases are revealed by magnetic resonance imaging (MRI) or bone marrow scintigraphy several months before they are visible by conventional bone scintigraphy (BS). We present a new approach for detecting bone metastases in patients with breast cancer. We compared findings obtained with fluoride ion (F-18) and positron emission tomography (PET) with those obtained with conventional BS. PATIENTS AND METHODS: Thirty-four breast cancer patients were prospectively examined using F-18–PET and conventional BS. F-18–PET and BS were performed within 3 weeks of each other. Metastatic bone disease was previously known to be present in six patients and was suspected (bone pain or increasing levels of tumor markers, Ca2+, alkaline phosphatase) in 28 patients. Both imaging modalities were compared by patient-by-patient analysis and lesion-by-lesion analysis, using a five-point scale for receiver operating characteristic (ROC) curve analysis. A panel of reference methodswas used, including MRI (28 patients), planar x-ray (17 patients), and spiral computed tomography (four patients). RESULTS: With F-18–PET, 64 bone metastases were detected in 17 patients. Only 29 metastases were detected in 11 patients with BS. As a result of F-18–PET imaging, clinical management was changed in four patients (11.7%). For F-18–PET, the area under the ROC curve was 0.99 on a lesion basis (for BS, it was 0.74; P < .05) and 1.00 on a patient basis (for BS, it was 0.82; P < .05). CONCLUSION: F-18–PET demonstrates a very early bone reaction when small bone marrow metastases are present, allowing accurate detection of breast cancer bone metastases. This accurate detection has a significant effect on clinical management, compared with the effect on management brought about by detection with conventional BS.


2012 ◽  
Vol 53 (1) ◽  
pp. 12-16 ◽  
Author(s):  
Ryusuke Murakami ◽  
Shin-ichiro Kumita ◽  
Tamiko Yoshida ◽  
Keiichi Ishihara ◽  
Tomonari Kiriyama ◽  
...  

Background An advantage of PET/CT has been demonstrated for diagnosis of several tumor entities. In patients with breast cancer, early diagnosis and accurate restaging of recurrence after surgery is important for selection of the most appropriate therapeutic strategy. Purpose To evaluate the accuracy of integrated positron emission tomography and computed tomography (PET/CT) using 18F-fluorodeoxyglucose (FDG), for follow-up of patients with suspected recurrent breast cancer. Material and Methods Forty-seven patients with suspected recurrent breast cancer underwent PET/CT. The PET and PET/CT images were interpreted without knowledge of the results of other diagnostic modalities, and compared with each other with reference to the final diagnosis. Results Twenty-five (53%) patients suffered tumor recurrence. The overall sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of PET/CT were 96%, 91%, 92%, 95%, and 94%, respectively. In comparison with PET, PET/CT had a higher sensitivity and accuracy (96% vs. 80% and 94% vs. 81%, respectively). The difference in diagnostic accuracy between PET/CT and PET was significant ( P < 0.05). Conclusion The present findings indicate that PET/CT is an accurate, sensitive and reliable modality for screening and detection of breast cancer recurrence. PET/CT appears to be an effective surveillance tool, as it is able to cover the whole body in a single procedure and shows good performance.


Sign in / Sign up

Export Citation Format

Share Document