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Helsen N, Van den Wyngaert T, Carp L, De Bree R, VanderVeken OM, De Geeter F, Maes A, Cambier JP, Spaepen K, Martens M, Hakim S, Beels L, Hoekstra OS, Van den Weyngaert D, Stroobants S, Van Laer C, Specenier P, Maes A, Debruyne P, Hutsebaut I, Van Dinter J, Homans F, Goethals L, Lenssen O, Deben K. Quantification of 18F-fluorodeoxyglucose uptake to detect residual nodal disease in locally advanced head and neck squamous cell carcinoma after chemoradiotherapy: results from the ECLYPS study. Eur J Nucl Med Mol Imaging 2020; 47:1075-1082. [PMID: 32040611 DOI: 10.1007/s00259-020-04710-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 01/28/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND The Hopkins criteria were introduced for nodal response evaluation after therapy in head and neck cancer, but its superiority over quantification is not yet confirmed. METHODS SUVbody weight thresholds and lesion-to-background ratios were explored in a prospective multicenter study of standardized FDG-PET/CT 12 weeks after CRT in newly diagnosed locally advanced head and neck squamous cell carcinoma (LAHNSCC) patients (ECLYPS). Reference standard was histology, negative FDG-PET/CT at 12 months after treatment or ≥ 2 years of negative follow-up. Area under the receiver operator characteristics curves (AUROC) were estimated and obtained thresholds were validated in an independent cohort of HNSCC patients (n = 127). RESULTS In ECLYPS, 124 patients were available for quantification. With a median follow-up of 20.4 months, 23 (18.5%) nodal neck recurrences were observed. A SUV70 threshold of 2.2 (AUROC = 0.89; sensitivity = 79.7%; specificity = 80.8%) was identified as optimal metric to identify nodal recurrence within 1 year after therapy. For lesion-to-background ratios, an SUV50/SUVliver threshold of 0.96 (AUROC = 0.89; sensitivity = 79.7%; specificity = 82.8%) had the best performance. Compared with Hopkins criteria (AUROC = 0.81), SUV70 and SUV50/SUVliver provided a borderline significant (p = 0.040 and p = 0.094, respectively) improvement. Validation of thresholds yielded similar AUROC values (SUV70 = 0.93, SUV50/SUVliver = 0.95), and were comparable to the Hopkins score (AUROC = 0.91; not statistically significant). CONCLUSION FDG quantification detects nodal relapse in LAHNSCC patients. When using EARL standardized PET acquisitions and reconstruction, absolute SUV metrics (SUV70 threshold 2.2) prove robust, yet ratios (SUV50/SUVliver, threshold 0.96) may be more useful in routine clinical care. In this setting, the diagnostic value of quantification is comparable to the Hopkins criteria. TRIAL REGISTRATION US National Library for Medicine, NCT01179360. Registered 11 August 2010, https://clinicaltrials.gov/ct2/show/NCT01179360.
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Affiliation(s)
- Nils Helsen
- Department of Nuclear Medicine, Antwerp University Hospital, Edegem, Belgium. .,Faculty of Medicine and Health Sciences, University of Antwerp, wilrijk, 2650, Antwerp, Belgium.
| | - Tim Van den Wyngaert
- Department of Nuclear Medicine, Antwerp University Hospital, Edegem, Belgium.,Faculty of Medicine and Health Sciences, University of Antwerp, wilrijk, 2650, Antwerp, Belgium
| | - Laurens Carp
- Department of Nuclear Medicine, Antwerp University Hospital, Edegem, Belgium.,Faculty of Medicine and Health Sciences, University of Antwerp, wilrijk, 2650, Antwerp, Belgium
| | - Remco De Bree
- Amsterdam UMC, Departments of Otolaryngology-Head and Neck Surgery, and Radiology & Nuclear Medicine, Cancer Center Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.,Head and Neck Surgical Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Olivier M VanderVeken
- Faculty of Medicine and Health Sciences, University of Antwerp, wilrijk, 2650, Antwerp, Belgium.,Department Otorhinolaryngology, and Head & Neck Surgery, Antwerp University Hospital, Edegem, Belgium
| | - Frank De Geeter
- Department of Nuclear Medicine, AZ Sint Jan, Brugge, Belgium
| | - Alex Maes
- Department of Nuclear Medicine, AZ Groeninge, Kortrijk, Belgium
| | | | - Karoline Spaepen
- Department of Nuclear Medicine, Sint Augustinus, Wilrijk, Belgium
| | - Michel Martens
- Department of radiotherapy, AZ Turnhout, Turnhout, Belgium
| | - Sara Hakim
- Amsterdam UMC, Departments of Otolaryngology-Head and Neck Surgery, and Radiology & Nuclear Medicine, Cancer Center Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Laurence Beels
- Department of Nuclear Medicine, AZ Groeninge, Kortrijk, Belgium
| | - Otto S Hoekstra
- Amsterdam UMC, Departments of Otolaryngology-Head and Neck Surgery, and Radiology & Nuclear Medicine, Cancer Center Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | | | - Sigrid Stroobants
- Department of Nuclear Medicine, Antwerp University Hospital, Edegem, Belgium.,Faculty of Medicine and Health Sciences, University of Antwerp, wilrijk, 2650, Antwerp, Belgium
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Flamen P, Van Cutsem E, Lerut A, Cambier JP, Haustermans K, Bormans G, De Leyn P, Van Raemdonck D, De Wever W, Ectors N, Maes A, Mortelmans L. Positron emission tomography for assessment of the response to induction radiochemotherapy in locally advanced oesophageal cancer. Ann Oncol 2002; 13:361-8. [PMID: 11996465 DOI: 10.1093/annonc/mdf081] [Citation(s) in RCA: 276] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
AIMS This prospective study was designed to determine the utility of 18F-labelled deoxyglucose (FDG) in positron emission tomography (PET) (FDG-PET) for assessing the response to neoadjuvant chemoradiation therapy (CRT) in locally advanced oesophageal tumours. PATIENTS AND METHODS Thirty-six patients with locally advanced oesophageal cancer (clinical T4 stage) without organ metastases, underwent FDG-PET before and 1 month after CRT. Patients were classified as major responders by serial FDG-PET when the post-CRT PET demonstrated a strong reduction of FDG uptake at the primary tumour site (>80% reduction of tumour-to-liver uptake ratio) without any abnormal FDG uptake elsewhere in the body. PET response was compared with histology obtained during post-induction transthoracic oesophagectomy. RESULTS A strong correlation was found between the extent of lymph node (LN) involvement as shown by the pre-CRT PET and the major response rate (P = 0.001): such response occurred in nine of 11 N0M0 patients (82%), in three of nine N(1-2)M0 patients (33%) and in two of 16 patients (13%) with distant lymphatic spread. Such a correlation was not found for computed tomography or endoscopic ultrasonography. The sensitivity of serial FDG-PET for a major CRT response was 10 of 14 (71%), its specificity 18 of 22 (82%). The concordance between the response assessment by PET and histopathology was 78%. The median survival time after CRT of PET major responders compared with PET non-major responders was 16.3 months and 6.4 months, respectively. The metabolic response as measured by serial FDG-PET is a stronger prognostic factor for overall survival (P = 0.002) than the extent of LN involvement seen on the pretreatment FDG-PET (P = 0.087). CONCLUSIONS These data indicate that CRT response as assessed by serial FDG-PET is strongly correlated with pathological response and survival.
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Affiliation(s)
- P Flamen
- Department of Nuclear Medicine, University Hospital Gasthuisberg, Leuven, Belgium.
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Flamen P, Lerut A, Van Cutsem E, Cambier JP, Maes A, De Wever W, Peeters M, De Leyn P, Van Raemdonck D, Mortelmans L. The utility of positron emission tomography for the diagnosis and staging of recurrent esophageal cancer. J Thorac Cardiovasc Surg 2000; 120:1085-92. [PMID: 11088030 DOI: 10.1067/mtc.2000.110464] [Citation(s) in RCA: 142] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To study the utility of whole-body positron emission tomography with (18)F-fluoro-deoxy-D -glucose (FDG-PET) for the evaluation of recurrence after curative resection of cancer of the esophagus or gastroesophageal junction. METHODS Forty-one patients with a clinical or radiologic suspicion of recurrent disease underwent conventional diagnostic work-up, including a spiral computed tomographic scan, an endoscopic ultrasound, and a dedicated whole-body FDG-PET. PET lesions were classified as equivocal or suspicious recurrence. The conventional diagnostic work-up and PET findings were correlated with pathology or with radiologic and clinical follow-up. Equivocal lesions were classified as positive. RESULTS Forty recurrences were found in 33 patients. The lesions were perianastomotic (n = 9), regional (n = 12), and at distant sites (n = 19). For the diagnosis of a perianastomotic recurrence, the sensitivity, specificity, and accuracy of FDG-PET were 100%, 57%, and 74%, versus 100%, 93%, and 96% for conventional diagnostic work-up, respectively (P = not significant). False-positive PET lesions were found in patients with a progressive anastomotic stenosis requiring repetitive endoscopic dilatation. For the diagnosis of regional and distant recurrences, the sensitivity, specificity, and accuracy of PET were 94%, 82%, and 87%, versus 81% (P = not significant), 82% (P = not significant), and 81% (P =.0771) for conventional diagnostic work-up. All false-positive PET lesions (n = 4) had been reported as equivocal. On a patient base, PET provided additional information in 11 of 41 (27%) patients. A major impact on diagnosis was found in 5 patients with equivocal or negative findings on complete diagnostic work-up in whom PET provided a true-positive diagnosis. In 5 other patients the diagnosis was staged upward from localized to extended recurrent disease, and in 1 patient with an equivocal complete diagnostic work-up, PET correctly excluded malignancy. CONCLUSION FDG-PET allows a highly sensitive diagnosis and accurate whole-body staging of symptomatic recurrent esophageal cancer. Further studies in asymptomatic patients are needed to assess the potential benefit on survival.
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Affiliation(s)
- P Flamen
- Departments of Nuclear Medicine, Internal Medicine, Radiology, and Thoracic Surgery, University Hospital Gasthuisberg, Katholieke Universiteit Leuven (KUL), Leuven, Belgium.
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Cambier JP, Verbeke KA, Vanbilloen HP, Bormans GM, de Roo MJ, Verbruggen AM. 99Tcm-dimercaptopropionyl-HSA prepared from a labelling kit: preliminary investigations as a blood pool agent. Nucl Med Commun 1997; 18:31-7. [PMID: 9061698 DOI: 10.1097/00006231-199701000-00007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The blood retention of 99Tcm-dimercaptopropionyl human serum albumin (99Tcm-DMP-HSA), prepared from a kit, was compared with that of five other 99Tcm-labelled blood pool tracers in two healthy volunteers. 99Tcm-DMP-HSA showed an almost identical behaviour to in vitro labelled red blood cells (RBCs), which are generally considered the reference standard for blood pool agents. The mean apparent blood mass of 99Tcm-DMP-HSA was 2.1% higher 10 min post-injection (p.i.) than that of in vitro 99Tcm-RBCs, 2.0% higher 30 min p.i., 4.7% higher 60 min p.i. and 2.3% higher 120 min p.i. In vivo labelling of RBCs yielded a labelling efficiency of 75-98%, depending on the stannous agent used. About 20 min after pertechnetate administration, the intravascular activity as a percentage of injected dose stabilized at levels close to that of in vitro labelled RBCs. One commercially available 99Tcm-HSA kit was found to be unsuitable as a blood pool tracer. As 99Tcm-DMP-HSA offers the same practical advantages as 99Tcm-HSA, but better biological characteristics, it shows promise as a new tracer for radionuclide ventriculography and further large-scale investigations are warranted.
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Affiliation(s)
- J P Cambier
- Department of Nuclear Medicine, University Hospital Gasthuisberg, Leuven, Belgium
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