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  1. Article ; Online: Manual and semi-automated computed tomography volumetry significantly overestimates the right liver lobe graft weight

    Hakkı Çelik / Hüseyin Odaman / Canan Altay / Tarkan Ünek / Mücahit Özbilgin / Tufan Egeli / Cihan Ağalar / İbrahim Kemal Astarcıoğlu / Funda Barlık

    Diagnostic and Interventional Radiology, Vol 30, Iss 1, Pp 3-

    a single-center study with adult living liver donors

    2024  Volume 8

    Abstract: PURPOSE: Preoperative evaluation of donor liver volume is indispensable in living donor liver transplantation to ensure sufficient residual liver and graft-to-recipient weight ratio. This study aims to evaluate the accuracy of two computed tomography (CT) ...

    Abstract PURPOSE: Preoperative evaluation of donor liver volume is indispensable in living donor liver transplantation to ensure sufficient residual liver and graft-to-recipient weight ratio. This study aims to evaluate the accuracy of two computed tomography (CT) volumetry programs, an interactive manual and a semi-automated one, in the preoperative estimation of the right lobe graft weight. METHODS: One hundred and nine right liver lobe living donors between January 2008 and January 2020 were enrolled in this retrospective study. Two radiologists measured the liver graft volumes independently using manual and semi-automated CT volumetry, and the interaction time was recorded. Actual graft weight (AGW) measured intraoperatively served as the reference standard. The paired samples t-test was used to compare the estimated graft weight (EGW) and the AGW. Inter-user and inter-method agreements were assessed with Bland–Altman plots. RESULTS: Both manual and semi-automated CT volumetry significantly overestimated the graft weight (EGW manual: 893 ± 155 mL vs. AGW manual: 787 ± 128 g, P < 0.001, EGW semi-automated: 879 ± 143 mL vs. AGW semi-automated, P < 0.001). The junior radiologist measured higher volumes than the senior radiologist with either method (P < 0.001). The Bland–Altman analysis revealed mean difference and standard deviation for inter-method agreement of 7 ± 48 cc for the senior radiologist, and 34 ± 54 cc for the junior radiologist. The mean difference and standard deviation for inter-method agreement was 63 ± 59 cc in manual volumetry and 22 ± 38 cc in semi-automated volumetry. The mean interaction time was 27.3 ± 14.2 min for manual volumetry and 6.8 ± 1.4 min for semi-automated volumetry (P < 0.001). CONCLUSION: Both manual and semi-automated CT volumetry significantly overestimated the right liver graft weight, while semi-automated volumetry significantly reduced the interaction time.
    Keywords liver ; living donor liver transplantation ; manual ct volumetry ; semi-automated ct volumetry ; transplantation ; Medical physics. Medical radiology. Nuclear medicine ; R895-920
    Subject code 610
    Language English
    Publishing date 2024-01-01T00:00:00Z
    Publisher Galenos Publishing House
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Multiple pulmonary hyalinizing granulomas mimicking widespread lung metastasis

    Hakki Celik / Naciye Sinem Gezer / Duygu Gurel / Emine Cagnur Ulukus

    Eurasian Journal of Pulmonology, Vol 23, Iss 2, Pp 128-

    2021  Volume 131

    Abstract: Pulmonary hyalinizing granuloma (PHG) is a rare benign lesion that can be unilaterally or bilaterally presented in the form of solitary or multiple nodules and masses. It may also be related to mediastinal and retroperitoneal fibrosis, autoimmune ... ...

    Abstract Pulmonary hyalinizing granuloma (PHG) is a rare benign lesion that can be unilaterally or bilaterally presented in the form of solitary or multiple nodules and masses. It may also be related to mediastinal and retroperitoneal fibrosis, autoimmune diseases, tumors, or infectious diseases. The definitive diagnosis of PHG can only be made by pathological evaluation. A 64-year-old male applied to the hospital to undergo an inguinal hernia repair operation. Preoperative chest imaging revealed multiple pulmonary nodules with lobulated contours and regular margins scattered throughout both lungs. Pathologic evaluation revealed that nodules were consistent with PHG. In addition, soft-tissue density observed around the abdominal aorta was compatible with retroperitoneal fibrosis, which may accompany this disease.
    Keywords computed tomography ; lung nodule ; pulmonary hyalinizing granuloma ; retroperitoneal fibrosis ; Internal medicine ; RC31-1245
    Subject code 610
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Wolters Kluwer Medknow Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Giant gossypiboma presenting as a pelvic mass

    Hakki Celik, MD / Isil Basara Akin, Associate Professor / Canan Altay, Associate Professor / Tayfun Bisgin, MD / Funda Obuz, Professor

    Radiology Case Reports, Vol 16, Iss 11, Pp 3308-

    2021  Volume 3310

    Abstract: Gossypiboma is a foreign object, such as a mass of cotton matrix or a sponge, that is left behind in a body cavity during surgery. It is uncommon, mostly asymptomatic, and hard to diagnose. It may be incorrectly diagnosed preoperatively, which can lead ... ...

    Abstract Gossypiboma is a foreign object, such as a mass of cotton matrix or a sponge, that is left behind in a body cavity during surgery. It is uncommon, mostly asymptomatic, and hard to diagnose. It may be incorrectly diagnosed preoperatively, which can lead to unnecessary invasive diagnostic procedures and operations. It should be included in the differential diagnosis of soft-tissue masses detected in patients with a history of a prior operation. We present a case of 36-year-old female who referred to emergency room with severe abdominal pain and distension. Imaging revealed a giant intra-abdominal mass resembling a soft tissue tumor, but revealed to be a giant gossypiboma caused by a sponge that was forgotten during previous ectopic pregnancy surgery. This case differs from others with the absence of findings supporting gossypiboma such as calcification or trapped gas bubbles and emphasizes the importance of this potentially life-threatening complication of surgery.
    Keywords Gossypiboma ; Retained surgical sponge ; Radiography ; Ultrasonography ; Computed Tomography ; Surgery ; Medical physics. Medical radiology. Nuclear medicine ; R895-920
    Subject code 610
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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