Person: ERDOĞAN, EZGİ BAŞAK
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Publication Metadata only Assessment of multifocality and axillary nodal involvement in early-stage breast cancer patients using 18F-FDG PET/CT compared to contrast-enhanced and diffusion-weighted magnetic resonance imaging and sentinel node biopsy(2015-08-01) ERGÜL, Nurhan; Kadioglu, HÜSEYİN; Yildiz, Seyma; YUCEL, Serap Baskaya; Gucin, ZÜHAL; Erdogan, EZGİ BAŞAK; Aydin, MEHMET; MUSLUMANOGLU, Mahmut; KADIOĞLU, HÜSEYİN; YILDIZ, ŞEYMA; GÜCİN, ZÜHAL; ERDOĞAN, EZGİ BAŞAK; AYDIN, MEHMETBackground: Non-invasive evaluation of the extent of axillary nodal involvement in early-stage breast cancer (ESBC) patients and accurate assessment of multifocality are both challenging. Few reports have explored whether 18F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) might be more useful than other diagnostic methods in these contexts.Publication Metadata only Abdomende Pozitron Emisyon Tomografi-Bilgisayarlı Tomografi Uygulamaları(2013-06-01T00:00:00Z) Erdoğan, Ezgi Başak; Aydın, Mehmet; ERDOĞAN, EZGİ BAŞAK; AYDIN, MEHMETPublication Metadata only BAŞ-BOYUN KANSERLERİNDE PET-BT-NİN ROLÜ(2013-07-01T00:00:00Z) Erdoğan, Ezgi Başak; Aydın, Mehmet; ERDOĞAN, EZGİ BAŞAK; AYDIN, MEHMETPublication Open Access Incidental detection of prostate-specific antigen-negative metastatic prostate cancer initially presented with solitary pulmonary nodule on fluorodeoxyglucose positron emission tomography/computed tomography(2015-01-01) ERDOĞAN, EZGİ BAŞAK; Buyukpinarbasili, NUR; ZİYADE, SEDAT; AKMAN, Tolga; TÜRK, HACI MEHMET; AYDIN, MEHMET; ERDOĞAN, EZGİ BAŞAK; BÜYÜKPINARBAŞILI, NUR; ZİYADE, SEDAT; TÜRK, HACI MEHMET; AYDIN, MEHMETA 71-year-old male patient with solitary pulmonary nodule underwent fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) showing slightly increased FDG uptake in this nodule. In addition, PET/CT detected hypermetabolic sclerotic bone lesions in the right second rib and 7(th) thoracic vertebrae, which were interpreted as possible metastases, and mildly increased FDG uptake in the prostate gland highly suspicious of malignancy. The patient's prostate-specific antigen (PSA) level was within normal range (3.8 ng/dL). The histopathological examination of the lung nodule and right second rib lesion proved metastases from prostate cancer, then the prostate biopsy-confirmed prostate adenocarcinoma. The unique feature of this case is to emphasize the importance of performing PET/CT for solitary pulmonary nodule in detecting PSA-negative metastatic prostate cancer. This case indicated that it should be kept in mind that, even if the PSA is negative, a lung metastasis of prostate cancer may be an underlying cause in patients evaluated for solitary pulmonary nodule by FDG PET/CT.Publication Open Access Synchronous Hepatocellular Carcinoma and Cholangiocellular Carcinoma on F-18-FDG PET/CT(2018-10-01) Erdogan, EZGİ BAŞAK; Turk, HACI MEHMET; Tekce, ERTUĞRUL; Aydin, MEHMET; ERDOĞAN, EZGİ BAŞAK; TÜRK, HACI MEHMET; AYDIN, MEHMETA 43-year-old male patient presented with a mass lesion on the right liver lobe, segment 5, in radiological imaging and elevated alpha-fetoprotein levels (323 ng/mL) compatible with hepatocellular carcinoma (HCC). Positron emission tomography/computed tomography (PET/CT) images showed background level 18F-FDG uptake in the mass lesion. In addition, a secondary focus of increased 18F-FDG uptake was detected on the left liver lobe, segment 2, approximately 1,5 cm in diameter. Histopathological examination revealed HCC in the larger mass lesion with a lower 18F-FDG uptake, and cholangiocellular carcinoma in the smaller mass lesion with a higher 18F-FDG uptake. To our knowledge, this is the first case report of two histopathologically different primary malignant liver tumors in two distinct segments of the liver detected by PET/CT.Publication Metadata only Pulmoner Nodüllere Yaklaşım(2019-12-01T00:00:00Z) Erdoğan, Ezgi Başak; Aydın, Mehmet; ERDOĞAN, EZGİ BAŞAK; AYDIN, MEHMETBu yazıda, tek veya birden fazla pulmoner nodüllerde benign/malign ayrımında PET-in yeri, malignite dışında PET pozitifliğine yol açan ve malign olduğu halde FDG PET-te negatif olarak yorumlanan durumlar ile akciğer kanseri tanısı almış olgularda PET-BT-nin rolü ve kısaca pulmoner nodüllerde, FDG dışındaki radyofarmasötiklerin kullanımı gözden geçirilmiştir.Publication Metadata only Bilinen ve Şüpheli Kemik Metastaz’lı Olgularda FDG PET/CT’nin Rolü(2014-04-16T00:00:00Z) Erdoğan, Ezgi Başak; Aydın, Mehmet; ERDOĞAN, EZGİ BAŞAK; AYDIN, MEHMETPublication Metadata only Radyofarmasötiklerin Üretiminde ve Klinik Kullanımında Radyasyon Korunması(2019-12-01) Erdoğan, Ezgi Başak; Aydın, Mehmet; ERDOĞAN, EZGİ BAŞAK; AYDIN, MEHMETRadyonüklid moleküler görüntüleme, biyolojik süreçlerin görüntülenmesi, karakterizasyonu ve ölçümünü sağlamakta olup, bu alan ilerlemeye ve gelişmeye devam etmektedir. Son zamanlarda geliştirilen hibrit görüntüleme sistemleri sayesinde, hem fonksiyonel hem de morfolojik bilgilerin aynı anda elde edilmesi tanısal yaklaşıma çok önemli katkı sağlamıştır. Bu sistemlerde, halen en yaygın olarak kullanılan radyofarmasötik F-18 ile işaretli glukoz analoğu olan F-18 florodeoksiglukozdur (FDG). Bu yazıda, pozitron emisyon tomografi (PET) görüntülemede kullanılan başlıca radyofarmasötiklerin görüntüleme mekanizmaları ve klinik uygulama alanları kısaca özetlenmeye çalışıldı. Anahtar Kelimeler: Radyofarmasötik; PET (pozitron emisyon tomografi)