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Karaosmanoglu AD, Onder O, Kizilgoz V, Hahn PF, Kantarci M, Ozmen MN, Karcaaltincaba M, Akata D. Infarcts and ischemia in the abdomen: an imaging perspective with an emphasis on cross-sectional imaging findings. Abdom Radiol (NY) 2023; 48:2167-2195. [PMID: 36933024 PMCID: PMC10024022 DOI: 10.1007/s00261-023-03877-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 01/13/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/19/2023]
Abstract
Infarcts and ischemia of abdominal organs may present with acute abdominal pain, and early diagnosis is crucial to prevent morbidity and mortality. Unfortunately, some of these patients present in poor clinical conditions to the emergency department, and imaging specialists are crucial for optimal outcomes. Although the radiological diagnosis of abdominal infarcts is often straightforward, it is vital to use the appropriate imaging modalities and correct imaging techniques for their detection. Additionally, some non-infarct-related abdominal pathologies may mimic infarcts, cause diagnostic confusion, and result in delayed diagnosis or misdiagnosis. In this article, we aimed to outline the general imaging approach, present cross-sectional imaging findings of infarcts and ischemia in several abdominal organs, including but not limited to, liver, spleen, kidneys, adrenals, omentum, and intestinal segments with relevant vascular anatomy, discuss possible differential diagnoses and emphasize important clinical/radiological clues that may assist radiologists in the diagnostic process.
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Affiliation(s)
| | - Omer Onder
- Department of Radiology, Hacettepe University School of Medicine, 06100, Ankara, Turkey
| | - Volkan Kizilgoz
- Department of Radiology, Erzincan Binali Yıldırım University School of Medicine, 24100, Erzincan, Turkey
| | - Peter F Hahn
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Mecit Kantarci
- Department of Radiology, Erzincan Binali Yıldırım University School of Medicine, 24100, Erzincan, Turkey
- Department of Radiology, Atatürk University School of Medicine, 25240, Erzurum, Turkey
| | - Mustafa Nasuh Ozmen
- Department of Radiology, Hacettepe University School of Medicine, 06100, Ankara, Turkey
| | | | - Deniz Akata
- Department of Radiology, Hacettepe University School of Medicine, 06100, Ankara, Turkey
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Kizilgoz V, Kantarci M, Tonkaz G, Levent A, Ogul H. Incidental findings on prostate MRI: a close look at the field of view in this anatomical region. Acta Radiol 2022; 64:1676-1693. [PMID: 36226365 DOI: 10.1177/02841851221131243] [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: 11/15/2022]
Abstract
Magnetic resonance imaging (MRI) has been widely used as an advanced imaging modality to detect prostate cancer and indicate suspicious areas to guide biopsy procedures. The increasing number of prostate examinations with MRI has provided an opportunity to detect incidental lesions, and some might be very significant to elucidate patient symptoms or occult neoplastic process in the early stages. These incidental lesions might be located in the prostate gland, adjacent tissues, or organs around the prostate gland or out of the genitourinary system. The field of view of prostate MRI includes not only the prostate gland but also other critical pelvic organs in this specific anatomical region. Some of these incidental lesions might cause the same symptoms as prostate cancer and might explain the symptoms of the patient, and some might indicate early cancer stages located outside the prostate. Reporting these lesions might be life-saving by initiating early disease treatment. Awareness of the predicted locations of congenital anomalies would also be beneficial for the radiologists to mention these incidental findings.
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Affiliation(s)
- Volkan Kizilgoz
- Faculty of Medicine, Department of Radiology, 162315Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Mecit Kantarci
- Faculty of Medicine, Department of Radiology, 162315Erzincan Binali Yıldırım University, Erzincan, Turkey.,Faculty of Medicine, Department of Radiology, 37503Atatürk University, Erzurum, Turkey
| | - Gokhan Tonkaz
- Erzurum Regional Education and Research Hospital, Erzurum, Turkey
| | - Akin Levent
- Faculty of Medicine, Department of Radiology, 162315Erzincan Binali Yıldırım University, Erzincan, Turkey.,Faculty of Medicine, Department of Radiology, 37503Atatürk University, Erzurum, Turkey
| | - Hayri Ogul
- Faculty of Medicine, Department of Radiology, Düzce University, Düzce, Turkey
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Yologlu Z, Aydin H, Alp NA, Aribas BK, Kizilgoz V, Arda K. Diffusion weighted magnetic resonance imaging in the diagnosis of parotid masses. Preliminary results. Saudi Med J 2017; 37:1412-1416. [PMID: 27874161 PMCID: PMC5303784 DOI: 10.15537/smj.2016.12.16288] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objective To demonstrate the diagnostic potentials of MRI, diffusion weighted imaging (DWI), and apparent diffusion coefficient (ADC) mapping in the detection of parotid masses correlated to the histopathological results. Methods Study design was retrospective. Fifteen patients with parotid gland masses were included as the study group and contralateral normal parotis glands of same patients were taken as the control group. Patients with bilateral parotid gland tumors were excluded, 7 right-sided and 8 left-sided parotid masses were included in the research. The study took place at the Department of Radiology, Ankara, Turkey, between May 2012 and September 2014. Results Apparent diffusion coefficient measurements of 15 parotis tumors in 1000 and 750 sec/mm2b-values with comparison to the contralateral normal gland parenchyma were demonstrated. Neurofibromas was predicted as the highest, and lipomas as the lowest ADC values. Pleomorphic adenomas, Warthin’s tumor, and normal parotid parenchyma indicate significant statistical differences from each other on the basis of mean ADC values (p<0.05). Conclusion The DWI and ADC mapping of parotis gland could aid in the differential diagnosis of benign and malignant masses.
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Affiliation(s)
- Zeynel Yologlu
- Radiology Department, Dr. Abdurrahman Yurtaslan Onkoloji Research Hospital, Afyonkarahisar State Hospital, Ankara, Turkey. E-mail.
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Gunes Tatar I, Aydin H, Kizilgoz V, Yilmaz KB, Hekimoglu B. Appropriateness of selection criteria for CT examinations performed at an emergency department. Emerg Radiol 2014; 21:583-8. [DOI: 10.1007/s10140-014-1234-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 05/04/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Idil Gunes Tatar
- Department of Radiology, Diskapi Yildirim Beyazit Training and Research Hospital, 06110, Diskapi-Altındag/Ankara, Turkey,
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Hekimoglu B, Gurgen F, Tatar IG, Aydin H, Kizilgoz V, Keyik B. The role of MR imaging with half Fourier acquired single shot turbo spin echo sequence in the diagnosis of lung lesions in comparison with multislice CT. J PAK MED ASSOC 2013; 63:1387-1392. [PMID: 24392525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To compare the diagnostic values of magnetic resonance imaging using Half Fourier Acquired Single Shot Turbo Spin Echo sequence and multidetector computed tomography in patients with pathologically examined pulmonary lesions. METHODS The retrospective, descriptive study was conducted at Radiology Department, Diskapi Research Hospital, Ankara, Turkey, and comprised records of patients with pathologically examined pulmonary lesions between May 2009 and March 2012. Patients were divided into three groups and examined by both multidedector computed tomography and magnetic resonance imaging. During the imaging, patients were not administered any intravenous contrast medium. Electrocardiogram gating and breath holding were not performed in echo sequence. Pulmonary lesions were evaluated on the basis of their dimensions, numbers, differentiation from atelectasis and consolidation, invasion to the thoracic wall-mediastinal structures and presence of lymphadenopathies. RESULTS Sensitivity of all patients was 50% (p = 0.214) and specificity of CT and MRI were 82.5% (p = 0.134) for the detectability of submilimetric nodules. For differentiation of the mass from atelectasis and consolidation, the sensitivity of computed tomography was statistically more significant compared to magnetic resonance imaging (86.6%; p = 0.035). For the invasion of the mass to the mediastinal structures and the thoracic wall, the sensitivity of magnetic resonance imaging was statistically more significant compared to tomography (86.6%; p = 0.035). CONCLUSION HASTE sequence can be used to determine the invasion of the pulmonary mass to the mediastinal structures and the thoracic wall since it is more sensitive than computed tomography. It can also be used to detect submilimetric nodules. It has equal sensitivity and specificity compared to computed tomography. But computed tomography is superior for the differentiation of the mass from atelectasis and consolidation.
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Affiliation(s)
- Baki Hekimoglu
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Fatma Gurgen
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Idil Gunes Tatar
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Hasan Aydin
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Volkan Kizilgoz
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Bahri Keyik
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
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Aydin H, Oktay NA, Kizilgoz V, Altin E, Tatar IG, Hekimoglu B. Value of Proton-MR-Spectroscopy in the Diagnosis of Temporal Lobe Epilepsy; Correlation of Metabolite Alterations With Electroencephalography. Iran J Radiol 2013; 9:1-11. [PMID: 23329953 PMCID: PMC3522336 DOI: 10.5812/iranjradiol.6686] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2010] [Revised: 12/10/2011] [Accepted: 12/19/2011] [Indexed: 11/18/2022]
Abstract
Background Epilepsy, a well-known mostly idiopathic neurologic disorder, has to be correctly diagnosed and properly treated. Up to now, several diagnostic approaches have been processed to determine the epileptic focus. Objectives The aim of this study was to discover whether proton-MR-spectroscopic imaging (MRSI) aids in the diagnosis of temporal lobe epilepsy in conjunction with classical electroencephalography (EEG) findings. Patients and Methods Totally, 70 mesial temporal zones consisting of 39 right hippocampi and 31 left hippocampi of 46 patients (25 male, 21 female) were analyzed by proton MRSI. All patients underwent a clinical neurologic examination, scalp EEG recording and prolonged video EEG monitoring. Partial seizures on the right, left or both sides were recorded in all patients. All patients were under medical treatment and none of the patients underwent amygdalohippocampectomy and similar surgical procedures. Results The normal average lactate (Lac), phosphocreatine, N-acetyl aspartate (NAA), creatine (Cr), choline (Cho), myo-inositol, glutamate and glutamine (Glx) peaks and Nacetyl aspartate/Cr, NAA/ Cho + Cr, Cho/Cr ratios were measured from the healthy opposite hippocampi or from the control subjects. The Lac, glutamate and glutamine (Glx), myo-inositol, phosphocreatine and NAA metabolites plus Cho/Cr ratio showed statistical difference between the normal and the epileptic hippocampi. Cho, Cr metabolites plus NAA/Cr, NAA/ Cho + Cr ratios were almost the same between the groups. The sensitivity of Proton-MR-Spectroscopy for lateralization of the epileptic foci in all patients was 96% and the specificity was 50%. Conclusions Proton-MRSI can easily be considered as an alternative modality of choice in the diagnosis of temporal lobe epilepsy and in the future; Proton-MR-Spectroscopy may become the most important technique used in epilepsy centers.
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Affiliation(s)
- Hasan Aydin
- MRI Department, S.B. Ankara Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Nilay Aydin Oktay
- MRI Department, S.B. Ankara Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Volkan Kizilgoz
- MRI Department, S.B. Ankara Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
- Corresponding author: Volkan Kizilgoz, MRI Department, S.B. Ankara Diskapi Yildirim Beyazit Education and Research Hospital, Irfan Bastug St., Ankara, Turkey. Tel.: +90-5057994013, Fax: +90-3123220006, E-mail:
| | - Elif Altin
- MRI Department, S.B. Ankara Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Idil Gunes Tatar
- MRI Department, S.B. Ankara Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Baki Hekimoglu
- Vascular Interventional Department, S.B. Ankara Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
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Aydin H, Damar C, Kizilgoz V, Hekimoglu B. Wilson’s Disease: Brain MR Imaging and Proton-MR Spectroscopy Findings. Erciyes Med J 2012. [DOI: 10.5152/etd.2012.52] [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] [Indexed: 11/22/2022] Open
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Aydin H, Kizilgoz V, Hekimoglu B. Compared with the Conventional MR Imaging, Do the Constructive Interference Steady State Sequence and Diffusion Weighted Imaging Aid in the Diagnosis of Lumbar Disc Hernias? Eurasian J Med 2011; 43:152-61. [PMID: 25610184 DOI: 10.5152/eajm.2011.37] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 07/21/2011] [Accepted: 10/17/2011] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Our aim was to evaluate the efficacy of Diffusion Weighted Imaging (DWI) and Constructive Interference Steady State (CISS) sequences in the depiction of lumbar disc hernias, including sequestrated and extruded discs. MATERIALS AND METHODS 100 patients; 35 males and 65 females, with 3 sequestration-16 extruded and 81 protruded all together 100 herniated discs were involved in this study. If a patient had more than one herniated disc, then the more precise herniation was included. All the MRI procedures were handled in Siemens Symphony Power 1.5 T. magnet. DWI- Apparent diffusion coefficient (ADC mapping) and CISS sequences were obtained in axial planes. Statistical analysis of CISS and DWI results were analysed by fischer's test, chi square statistics. RESULTS CISS sequence had a 89% sensitivity, 100% specificity for all lumbar disc hernias, had 100% sensitivity and specificity in the evaluation of sequestrated and extruded discs. DWI had a 77% sensitivity and %100 specificity, had 100% sensitivity and 50% specificity in the evaluation of extrusion, 100% sensitivity and specificity in the evaluation of sequestration. CONCLUSION CISS sequence and quantitative DWI may be alternative imaging modalities to the routine MR imaging sequences in the depiction of lumbar disc hernias, including sequestration and extruded discs.
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Affiliation(s)
- Hasan Aydin
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Volkan Kizilgoz
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
| | - Baki Hekimoglu
- Department of Radiology, Diskapi Yildirim Beyazit Education and Research Hospital, Ankara, Turkey
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Keyik B, Yanik B, Conkbayir I, Tuygun C, Kizilgoz V, Hekimoğlu B. Continuous-type splenogonadal fusion associated with an ipsilateral testicular atrophy: sonographic findings. J Clin Ultrasound 2010; 38:161-163. [PMID: 19802886 DOI: 10.1002/jcu.20640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Splenogonadal fusion is a rare congenital anomaly in which the spleen is abnormally connected to the gonad. Two types of splenogonadal fusion have been described: continuous and discontinuous. Splenogonadal fusion is frequently associated with cryptorchidism and/or congenital orofacial/limb anomalies. We describe the ultrasound findings in a case of continuous-type splenogonadal fusion associated with ipsilateral testicular atrophy with correlation with MRI.
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Affiliation(s)
- Bahri Keyik
- Yildirim Beyazit Dişkapi Educational and Research Hospital, Department of Radiology, Tr-06110, Dişkapi, Ankara, Turkey
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