Clinical impact of whole-body 68Ga-PSMA I&T PET/CT: lesion frequency and added benefit in lower extremities
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Clinical impact of whole-body 68Ga-PSMA I&T PET/CT: lesion frequency and added benefit in lower extremities. / Stolzenbach, Lara Franziska; Löcherbach, Florian; Wargenau, Katharina; Pose, Randi; Steuber, Thomas; Tian, Zhe; Budäus, Lars; Tilki, Derya; Graefen, Markus; Köhler, Daniel; Karakiewicz, Pierre I; Sauer, Markus; Apostolova, Ivayla Ilieva; Maurer, Tobias; Berliner, Christoph.
in: NUKLEARMED-NUCL MED, Jahrgang 60, Nr. 6, 12.2021, S. 417-424.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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T1 - Clinical impact of whole-body 68Ga-PSMA I&T PET/CT: lesion frequency and added benefit in lower extremities
AU - Stolzenbach, Lara Franziska
AU - Löcherbach, Florian
AU - Wargenau, Katharina
AU - Pose, Randi
AU - Steuber, Thomas
AU - Tian, Zhe
AU - Budäus, Lars
AU - Tilki, Derya
AU - Graefen, Markus
AU - Köhler, Daniel
AU - Karakiewicz, Pierre I
AU - Sauer, Markus
AU - Apostolova, Ivayla Ilieva
AU - Maurer, Tobias
AU - Berliner, Christoph
N1 - Thieme. All rights reserved.
PY - 2021/12
Y1 - 2021/12
N2 - AIM: Few small-scaled studies performed systematic analysis of the benefits of extending prostate specific membrane antigen positron-emission tomography/ computed tomography (68Ga-PSMA I&T PET/CT) to the lower extremities in prostate cancer (PCa) patients. We hypothesized that 68Ga-PSMA I&T PET/CT positive lesions are rare in lower extremities of prostate cancer (PCa) patients, the clinical implication is negligible and may therefore be omitted.METHODS: We retrospectively analyzed 1,068 PCa patients who received 68Ga-PSMA I&T PET/CT in a single institution (2016-2018). Of those, 285 (26.7%) were newly diagnosed, 529 (49.5%) had biochemical recurrence (BCR) and 254 (23.8%) were castration-resistant prostate cancer (CRPC) patients.RESULTS: Of 1,068 68Ga-PSMA I&T PET/CTs, positive lesions in the lower extremities were identified in 6.9% patients (n=74). Positive lesions in the lower extremities were most common in CRPC patients (19.7%; n=50), followed by newly diagnosed (3.2%; n=9) and BCR (2.8%; n=15) PCa patients. Only 3 patients presented with exclusive lesions in the lower extremities, respectively 0.8% (n=2) in CRPC and 0.4% (n=1) in newly diagnosed PCa. Both CRPC (94.1%, n=47) and BCR (80.0%, n=12) patients with PSMA-positive lesions predominantly received systemic therapy.CONCLUSION: Identification of lower extremities lesions with PSMA PET/CT is uncommon and exclusive lesions are rare. PSMA PET/CT findings of the lower extremities did not change therapy management. Thus, scanning of the lower extremities can be omitted in standard protocols.
AB - AIM: Few small-scaled studies performed systematic analysis of the benefits of extending prostate specific membrane antigen positron-emission tomography/ computed tomography (68Ga-PSMA I&T PET/CT) to the lower extremities in prostate cancer (PCa) patients. We hypothesized that 68Ga-PSMA I&T PET/CT positive lesions are rare in lower extremities of prostate cancer (PCa) patients, the clinical implication is negligible and may therefore be omitted.METHODS: We retrospectively analyzed 1,068 PCa patients who received 68Ga-PSMA I&T PET/CT in a single institution (2016-2018). Of those, 285 (26.7%) were newly diagnosed, 529 (49.5%) had biochemical recurrence (BCR) and 254 (23.8%) were castration-resistant prostate cancer (CRPC) patients.RESULTS: Of 1,068 68Ga-PSMA I&T PET/CTs, positive lesions in the lower extremities were identified in 6.9% patients (n=74). Positive lesions in the lower extremities were most common in CRPC patients (19.7%; n=50), followed by newly diagnosed (3.2%; n=9) and BCR (2.8%; n=15) PCa patients. Only 3 patients presented with exclusive lesions in the lower extremities, respectively 0.8% (n=2) in CRPC and 0.4% (n=1) in newly diagnosed PCa. Both CRPC (94.1%, n=47) and BCR (80.0%, n=12) patients with PSMA-positive lesions predominantly received systemic therapy.CONCLUSION: Identification of lower extremities lesions with PSMA PET/CT is uncommon and exclusive lesions are rare. PSMA PET/CT findings of the lower extremities did not change therapy management. Thus, scanning of the lower extremities can be omitted in standard protocols.
KW - Gallium Isotopes
KW - Gallium Radioisotopes
KW - Humans
KW - Lower Extremity
KW - Male
KW - Positron Emission Tomography Computed Tomography
KW - Retrospective Studies
U2 - 10.1055/a-1542-6064
DO - 10.1055/a-1542-6064
M3 - SCORING: Journal article
C2 - 34416785
VL - 60
SP - 417
EP - 424
JO - NUKLEARMED-NUCL MED
JF - NUKLEARMED-NUCL MED
SN - 0029-5566
IS - 6
ER -