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Dubois J, Tosato G, Garrigue P, Taieb D, Guillet B, Nail V. Short-Term Biological Toxicity Prediction of [ 177Lu]Lutetium-Oxodotreotide: An Original Retrospective Analysis. Cancer Biother Radiopharm 2024. [PMID: 38655905 DOI: 10.1089/cbr.2023.0195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open
Abstract
Introduction: [177Lu]Lutetium (Lu)-oxodotreotide is a radiopharmaceutical drug used as peptide receptor radionuclide therapy (PRRT) for somatostatin receptor-expressing neuroendocrine neoplasms. It provides an additional effective alternative treatment for these rare cancers. Although well tolerated, its safety profile must continue to be characterized to support its use as a first-line treatment or for additional cycles. This study aims to evaluate factors associated with the occurrence of [177Lu]Lu-oxodotreotide induced short-term toxicity. Materials and Methods: A retrospective observational monocentric study was carried out from July 2013 to October 2021. Inclusion criteria were defined as follows: patients who received at least four cycles of [177Lu]Lu-oxodotreotide and were followed up for 6 months after the last injection. Graduated toxicity was defined using the National Cancer Institute Common Terminology Criteria for Adverse Events 5.0. Cox regression was used in the analysis. Results: Forty patients were included. The most frequent toxicities occurred during the first cycle and were graded as G1 or G2. As expected, toxicities were predominantly hematological and hepatic, with incomplete reversibility after each cycle. The following factors were significantly related to the occurrence of hematological or hepatic toxicity during PRRT: gastrointestinal primary tumor diagnosis, bone metastases, peritoneal metastases, pancreatic metastases or pulmonary metastases, and high tumor grade. Conclusion: Knowledge and consideration of these factors in adjusting [177Lu]Lu-oxodotreotide treatment regimen could help prevent or reduce the severity of these toxicities. Further studies are still warranted to refine these results and improve treatment management.
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Affiliation(s)
- Julien Dubois
- Department of Radiopharmacy, La Timone University Hospital, CERIMED, Aix-Marseille University, Marseille, France
- Department of Radiopharmacy, Montpellier University Hospital, Montpellier University, Montpellier, France
- Cancer Research Institute of Montpellier (IRCM), University of Montpellier, Montpellier, France
| | - Guillaume Tosato
- Montpellier University Hospital, Montpellier University, Montpellier, France
| | - Philippe Garrigue
- Department of Radiopharmacy, La Timone University Hospital, CERIMED, Aix-Marseille University, Marseille, France
| | - David Taieb
- Department of Nuclear Medicine, La Timone University Hospital, CERIMED, Aix-Marseille University, Marseille, France
| | - Benjamin Guillet
- Department of Radiopharmacy, La Timone University Hospital, CERIMED, Aix-Marseille University, Marseille, France
| | - Vincent Nail
- Department of Radiopharmacy, La Timone University Hospital, CERIMED, Aix-Marseille University, Marseille, France
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Louis B, Nail V, Nachar O, Bouhlel A, Moyon A, Balasse L, Simoncini S, Chabert A, Fernandez S, Brige P, Hache G, Tintaru A, Morgat C, Dignat-George F, Garrigue P, Guillet B. Design and preclinical evaluation of a novel apelin-based PET radiotracer targeting APJ receptor for molecular imaging of angiogenesis. Angiogenesis 2023; 26:463-475. [PMID: 36973482 PMCID: PMC10328853 DOI: 10.1007/s10456-023-09875-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023]
Abstract
APJ has been extensively described in the pathophysiology of angiogenesis and cell proliferation. The prognostic value of APJ overexpression in many diseases is now established. This study aimed to design a PET radiotracer that specifically binds to APJ. Apelin-F13A-NODAGA (AP747) was synthesized and radiolabeled with gallium-68 ([68Ga]Ga-AP747). Radiolabeling purity was excellent (> 95%) and stable up to 2 h. Affinity constant of [67Ga]Ga-AP747 was measured on APJ-overexpressing colon adenocarcinoma cells and was in nanomolar range. Specificity of [68Ga]Ga-AP747 for APJ was evaluated in vitro by autoradiography and in vivo by small animal PET/CT in both colon adenocarcinoma mouse model and Matrigel plug mouse model. Dynamic of [68Ga]Ga-AP747 PET/CT biodistributions was realized on healthy mice and pigs for two hours, and quantification of signal in organs showed a suitable pharmacokinetic profile for PET imaging, largely excreted by urinary route. Matrigel mice and hindlimb ischemic mice were submitted to a 21-day longitudinal follow-up with [68Ga]Ga-AP747 and [68Ga]Ga-RGD2 small animal PET/CT. [68Ga]Ga-AP747 PET signal in Matrigel was significantly more intense than that of [68Ga]Ga-RGD2. Revascularization of the ischemic hind limb was followed by LASER Doppler. In the hindlimb, [68Ga]Ga-AP747 PET signal was more than twice higher than that of [68Ga]Ga-RGD2 on day 7, and significantly superior over the 21-day follow-up. A significant, positive correlation was found between the [68Ga]Ga-AP747 PET signal on day 7 and late hindlimb perfusion on day 21. We developed a new PET radiotracer that specifically binds to APJ, [68Ga]Ga-AP747 that showed more efficient imaging properties than the most clinically advanced tracer of angiogenesis, [68Ga]Ga-RGD2.
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Affiliation(s)
- Béatrice Louis
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
| | - Vincent Nail
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
- Assistance Publique - Hôpitaux de Marseille, Pôle Pharmacie, Radiopharmacie, Marseille, France
| | - Oriane Nachar
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
- Assistance Publique - Hôpitaux de Marseille, Pôle Pharmacie, Radiopharmacie, Marseille, France
| | - Ahlem Bouhlel
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
| | - Anaïs Moyon
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
- Assistance Publique - Hôpitaux de Marseille, Pôle Pharmacie, Radiopharmacie, Marseille, France
| | - Laure Balasse
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
| | | | | | | | - Pauline Brige
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
- Aix Marseille Univ, LIIE, Marseille, France
| | - Guillaume Hache
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
| | - Aura Tintaru
- Aix Marseille Univ, CNRS, CINaM, Marseille, France
| | - Clément Morgat
- Univ. Bordeaux, CNRS, INCIA, UMR 5287, 33000, Bordeaux, France
- Nuclear Medicine Department, University Hospital of Bordeaux, 33000, Bordeaux, France
| | | | - Philippe Garrigue
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France.
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France.
- Assistance Publique - Hôpitaux de Marseille, Pôle Pharmacie, Radiopharmacie, Marseille, France.
| | - Benjamin Guillet
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France
- Aix Marseille Univ, CNRS, CERIMED, Marseille, France
- Assistance Publique - Hôpitaux de Marseille, Pôle Pharmacie, Radiopharmacie, Marseille, France
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Nail V, Brandone T, Baconnet M, Dubrou C, Fluchère F, Azulay JP, Hache G. Sensibilisation à l’automédication responsable au cours de la maladie de Parkinson : réalisation de fiche sur les interactions médicamenteuses et évaluation par les patients et les professionnels de l’officine. Annales Pharmaceutiques Françaises 2022; 80:981-987. [DOI: 10.1016/j.pharma.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/07/2022] [Accepted: 03/31/2022] [Indexed: 11/15/2022]
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Giraud R, Moyon A, Simoncini S, Duchez AC, Nail V, Chareyre C, Bouhlel A, Balasse L, Fernandez S, Vallier L, Hache G, Sabatier F, Dignat-George F, Lacroix R, Guillet B, Garrigue P. Tracking Radiolabeled Endothelial Microvesicles Predicts Their Therapeutic Efficacy: A Proof-of-Concept Study in Peripheral Ischemia Mouse Model Using SPECT/CT Imaging. Pharmaceutics 2022; 14:pharmaceutics14010121. [PMID: 35057018 PMCID: PMC8778059 DOI: 10.3390/pharmaceutics14010121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 11/16/2022] Open
Abstract
Microvesicles, so-called endothelial large extracellular vesicles (LEVs), are of great interest as biological markers and cell-free biotherapies in cardiovascular and oncologic diseases. However, their therapeutic perspectives remain limited due to the lack of reliable data regarding their systemic biodistribution after intravenous administration. Methods: Applied to a mouse model of peripheral ischemia, radiolabeled endothelial LEVs were tracked and their in vivo whole-body distribution was quantified by microSPECT/CT imaging. Hindlimb perfusion was followed by LASER Doppler and motility impairment function was evaluated up to day 28 post-ischemia. Results: Early and specific homing of LEVs to ischemic hind limbs was quantified on the day of ischemia and positively correlated with reperfusion intensity at a later stage on day 28 after ischemia, associated with an improved motility function. Conclusions: This concept is a major asset for investigating the biodistribution of LEVs issued from other cell types, including cancer, thus partly contributing to better knowledge and understanding of their fate after injection.
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Affiliation(s)
- Romain Giraud
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
- Radiopharmacy, Pôle Pharmacie, University Hospitals of Marseille, APHM, 13005 Marseille, France
| | - Anaïs Moyon
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
- Radiopharmacy, Pôle Pharmacie, University Hospitals of Marseille, APHM, 13005 Marseille, France
| | - Stéphanie Simoncini
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
| | - Anne-Claire Duchez
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
| | - Vincent Nail
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
- Radiopharmacy, Pôle Pharmacie, University Hospitals of Marseille, APHM, 13005 Marseille, France
| | - Corinne Chareyre
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
| | - Ahlem Bouhlel
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
| | - Laure Balasse
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
| | - Samantha Fernandez
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
| | - Loris Vallier
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
| | - Guillaume Hache
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
| | - Florence Sabatier
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
| | - Françoise Dignat-George
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- Department of Hematology and Vascular Biology, University Hospitals of Marseille, APHM, 13005 Marseille, France
| | - Romaric Lacroix
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- Department of Hematology and Vascular Biology, University Hospitals of Marseille, APHM, 13005 Marseille, France
| | - Benjamin Guillet
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
- Radiopharmacy, Pôle Pharmacie, University Hospitals of Marseille, APHM, 13005 Marseille, France
| | - Philippe Garrigue
- C2VN, INSERM, INRAE, Aix Marseille University, 13385 Marseille, France; (R.G.); (A.M.); (S.S.); (A.-C.D.); (C.C.); (A.B.); (L.B.); (L.V.); (G.H.); (F.S.); (F.D.-G.); (R.L.); (B.G.)
- CERIMED, CNRS, Marseille, Aix Marseille University, 13385 Marseille, France; (V.N.); (S.F.)
- Radiopharmacy, Pôle Pharmacie, University Hospitals of Marseille, APHM, 13005 Marseille, France
- Correspondence:
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Moyon A, Garrigue P, Fernandez S, Hubert F, Balasse L, Brige P, Hache G, Nail V, Blot-Chabaud M, Dignat-George F, Rochais F, Guillet B. Comparison of a New 68Ga-Radiolabelled PET Imaging Agent sCD146 and RGD Peptide for In Vivo Evaluation of Angiogenesis in Mouse Model of Myocardial Infarction. Cells 2021; 10:cells10092305. [PMID: 34571954 PMCID: PMC8466330 DOI: 10.3390/cells10092305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022] Open
Abstract
Ischemic vascular diseases are associated with elevated tissue expression of angiomotin (AMOT), a promising molecular target for PET imaging. On that basis, we developed an AMOT-targeting radiotracer, 68Ga-sCD146 and performed the first in vivo evaluation on a myocardial infarction mice model and then, compared AMOT expression and αvβ3-integrin expression with 68Ga-sCD146 and 68Ga-RGD2 imaging. After myocardial infarction (MI) induced by permanent ligation of the left anterior descending coronary artery, myocardial perfusion was evaluated by Doppler ultrasound and by 18F-FDG PET imaging. 68Ga-sCD146 and 68Ga-RGD2 PET imaging were performed. In myocardial infarction model, heart-to-muscle ratio of 68Ga-sCD146 imaging showed a significantly higher radiotracer uptake in the infarcted area of MI animals than in sham (* p = 0.04). Interestingly, we also observed significant correlations between 68Ga-sCD146 imaging and delayed residual perfusion assessed by 18F-FDG (* p = 0.04), with lowest tissue fibrosis assessed by histological staining (* p = 0.04) and with functional recovery assessed by ultrasound imaging (** p = 0.01). 68Ga-sCD146 demonstrated an increase in AMOT expression after MI. Altogether, significant correlations of early post-ischemic 68Ga-sCD146 uptake with late heart perfusion, lower tissue fibrosis and better functional recovery, make 68Ga-sCD146 a promising radiotracer for tissue angiogenesis assessment after MI.
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Affiliation(s)
- Anaïs Moyon
- Pharmacological Faculty, Aix Marseille University, INSERM 1263, INRAE 1260, C2VN, 13385 Marseille, France; (P.G.); (G.H.); (V.N.); (M.B.-C.); (F.D.-G.); (B.G.)
- Medical Faculty, Aix-Marseille University, CNRS 2012, CERIMED, 13385 Marseille, France; (S.F.); (L.B.); (P.B.)
- APHM, Service de Radiopharmacie, 13005 Marseille, France
- Correspondence:
| | - Philippe Garrigue
- Pharmacological Faculty, Aix Marseille University, INSERM 1263, INRAE 1260, C2VN, 13385 Marseille, France; (P.G.); (G.H.); (V.N.); (M.B.-C.); (F.D.-G.); (B.G.)
- Medical Faculty, Aix-Marseille University, CNRS 2012, CERIMED, 13385 Marseille, France; (S.F.); (L.B.); (P.B.)
- APHM, Service de Radiopharmacie, 13005 Marseille, France
| | - Samantha Fernandez
- Medical Faculty, Aix-Marseille University, CNRS 2012, CERIMED, 13385 Marseille, France; (S.F.); (L.B.); (P.B.)
| | - Fabien Hubert
- Medical Faculty, Aix Marseille University, INSERM, MMG, U 1251, 13385 Marseille, France; (F.H.); (F.R.)
| | - Laure Balasse
- Medical Faculty, Aix-Marseille University, CNRS 2012, CERIMED, 13385 Marseille, France; (S.F.); (L.B.); (P.B.)
| | - Pauline Brige
- Medical Faculty, Aix-Marseille University, CNRS 2012, CERIMED, 13385 Marseille, France; (S.F.); (L.B.); (P.B.)
- Medical Faculty, Aix-Marseille University, UR4264, LIIE, 13385 Marseille, France
| | - Guillaume Hache
- Pharmacological Faculty, Aix Marseille University, INSERM 1263, INRAE 1260, C2VN, 13385 Marseille, France; (P.G.); (G.H.); (V.N.); (M.B.-C.); (F.D.-G.); (B.G.)
- Medical Faculty, Aix-Marseille University, CNRS 2012, CERIMED, 13385 Marseille, France; (S.F.); (L.B.); (P.B.)
| | - Vincent Nail
- Pharmacological Faculty, Aix Marseille University, INSERM 1263, INRAE 1260, C2VN, 13385 Marseille, France; (P.G.); (G.H.); (V.N.); (M.B.-C.); (F.D.-G.); (B.G.)
- Medical Faculty, Aix-Marseille University, CNRS 2012, CERIMED, 13385 Marseille, France; (S.F.); (L.B.); (P.B.)
- APHM, Service de Radiopharmacie, 13005 Marseille, France
| | - Marcel Blot-Chabaud
- Pharmacological Faculty, Aix Marseille University, INSERM 1263, INRAE 1260, C2VN, 13385 Marseille, France; (P.G.); (G.H.); (V.N.); (M.B.-C.); (F.D.-G.); (B.G.)
| | - Françoise Dignat-George
- Pharmacological Faculty, Aix Marseille University, INSERM 1263, INRAE 1260, C2VN, 13385 Marseille, France; (P.G.); (G.H.); (V.N.); (M.B.-C.); (F.D.-G.); (B.G.)
- APHM, Service d’Hématologie, Hôpital Conception, 13005 Marseille, France
| | - Francesca Rochais
- Medical Faculty, Aix Marseille University, INSERM, MMG, U 1251, 13385 Marseille, France; (F.H.); (F.R.)
| | - Benjamin Guillet
- Pharmacological Faculty, Aix Marseille University, INSERM 1263, INRAE 1260, C2VN, 13385 Marseille, France; (P.G.); (G.H.); (V.N.); (M.B.-C.); (F.D.-G.); (B.G.)
- Medical Faculty, Aix-Marseille University, CNRS 2012, CERIMED, 13385 Marseille, France; (S.F.); (L.B.); (P.B.)
- APHM, Service de Radiopharmacie, 13005 Marseille, France
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Nail V, Moyon A, Nachar O, Gabriel S, Guillet B, Garrigue P. Pharmaceutical interviews to overcome digestive artefacts on [ 99m Tc]Tc-tetrofosmin myocardial perfusion scintigraphy. J Clin Pharm Ther 2021; 46:1480-1483. [PMID: 33754343 DOI: 10.1111/jcpt.13418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 10/13/2020] [Revised: 03/05/2021] [Accepted: 03/12/2021] [Indexed: 11/30/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVES Poor image quality was randomly seen in [99m Tc]Tc-tetrofosmin myocardial perfusion scintigraphic imaging. The interference hampered or even precluded medical interpretation. Our objective was to identify the cause of the random interferences. METHODS Out of 40 patients planned for [99m Tc]Tc-tetrofosmin MPS, 36 presented normal tracer uptake and 4 exhibited subdiaphragmatic artefacts. Pharmaceutical interviews (P.I.) were set up to formally identify aetiologies of subdiaphragmatic uptake of [99m Tc]Tc-tetrofosmin. Patients were questioned about their diet and current drug treatments. RESULTS AND DISCUSSION P.I. led to identification of dipyridamole as the cause of the artefacts. The systematic ingestion of a solid 25-gram high-fat snack bar and a glass of fresh water was introduced immediately after the injection of dipyridamole in 12 other patients undergoing [99m Tc]Tc-tetrofosmin MPS. None of the 12 patients presented subdiaphragmatic artefacts. WHAT IS NEW AND CONCLUSION P.I. identified the cause of poor scintigraphic images to allow improved diagnoses.
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Affiliation(s)
- Vincent Nail
- Radiopharmacie, Hôpital Nord, APHM, INSERM 1263, INRAE 1260, C2VN, CERIMED, Aix-Marseille Univ, Marseille, France
| | - Anaïs Moyon
- Radiopharmacie, Hôpital Nord, APHM, INSERM 1263, INRAE 1260, C2VN, CERIMED, Aix-Marseille Univ, Marseille, France
| | - Oriane Nachar
- Radiopharmacie, Hôpital Nord, APHM, INSERM 1263, INRAE 1260, C2VN, CERIMED, Aix-Marseille Univ, Marseille, France
| | - Sophie Gabriel
- NSERM 1263, INRAE 1260, C2VN, CNRS 2012, CERIMED,, Aix-Marseille Univ, Marseille, France
| | - Benjamin Guillet
- Radiopharmacie, Hôpital Nord, APHM, INSERM 1263, INRAE 1260, C2VN, CERIMED, Aix-Marseille Univ, Marseille, France
| | - Philippe Garrigue
- Radiopharmacie, Hôpital Nord, APHM, INSERM 1263, INRAE 1260, C2VN, CERIMED, Aix-Marseille Univ, Marseille, France
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