Abstract:
BACKGROUND:The aim of this study was to evaluate the frequency of circle of Willis (COW) variations and the measurements of the COW vessel diameters in the Turkish population. MATERIALS AND METHODS:The patient population for this single-centre, retrospective study was formed of patients who had brain magnetic resonance angiography (MRA). A total of 384 subjects were included in the study. The three-dimensional time-of-flight (TOF) technique was used for MRA imaging to evaluate the anatomy of the COW. Variations in the COW were recorded. The diameters of the critical arteries of the COW were measured. RESULTS:Adult configuration of the COW was determined in 326 (85%) cases, foetal configuration in 50 (13%) cases and transitional configuration in 8 (2%) cases. The COW was normal in 328 (85.4%). In the remaining 56 (14.6%) cases, agenesis was determined in 62 vessels. The mean calibrations of the vessels were measured as 2.85 mm in the basilar artery, 4.24 mm in the right internal carotid artery (ICA), 4.32 mm in the left ICA, 1.58 mm in the right A1, 1.64 mm in the left A1, 2.13 mm in the right M1, 2.10 mm in the left M1, 1.80 mm in the right P1, 1.88 mm in the left P1, 1.12 mm in the right posterior communicating artery, and 1.12 mm in the left posterior communicating artery. CONCLUSIONS:Circle of Willis variations may show geographic and ethnic differences. Knowledge of the frequency and types of variation in the population is important for neurosurgeons and in radiological interventional procedures as a guide for entry and in respect of collateral which could develop later.
journal_name
Folia Morphol (Warsz)journal_title
Folia morphologicaauthors
Yeniçeri IÖ,Çullu N,Deveer M,Yeniçeri ENdoi
10.5603/FM.a2017.0004subject
Has Abstractpub_date
2017-01-01 00:00:00pages
420-425issue
3eissn
0015-5659issn
1644-3284pii
VM/OJS/J/48937journal_volume
76pub_type
杂志文章abstract:BACKGROUND:Tendinopathy of the long head of the biceps brachii tendon (LHBT) is one of the most common, painful conditions of the anterior part of the shoulder and often coexists with rotator cuff tears. Multifactorial aetiopathology of tendi-nopathy is poorly understood; however, several studies indicated that it is s...
journal_title:Folia morphologica
pub_type: 临床试验,杂志文章
doi:10.5603/FM.a2017.0093
更新日期:2018-01-01 00:00:00
abstract::To revisit foetal development of the deep flexor tendons of the hand and foot, we examined the paraffin-embedded histology of 20 mid-term foetuses at 8-15 weeks of estimated gestational age (35-118 mm crown-rump length or CRL). At 8-9 weeks, in front of the metacarpal bones, the flexor pollicis longus and flexor d...
journal_title:Folia morphologica
pub_type: 临床试验,杂志文章
doi:
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abstract::The arterial system formed by branches of the vertebral and basilar arteries in guinea pig was compared to that of dog and human. The vertebrobasilar arterial system in particular species shows similarities and differences, considering its structure and arising branches. The differences are mainly due to the length of...
journal_title:Folia morphologica
pub_type: 杂志文章
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abstract::Our studies were carried out on the hearts of virgin female Wistar rats treated with 100,000 i.u. of vitamin D3 (calciol) per os for 3 consecutive days. Multifocal cardionecrosis was established macroscopically in 70% of the vitamin D-treated rats on the 7th day of the experiment when the rats were in the acute phase ...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2004-11-01 00:00:00
abstract::The aim of the research was to examine the anatomy of the arterial system in the inguinal region, hip and thigh of Papio anubis. No description of this was found in the available scientific literature, although, at the same time, the baboon is considered to be a good animal model in biomedical research. Macroscopic an...
journal_title:Folia morphologica
pub_type: 杂志文章
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更新日期:2007-11-01 00:00:00
abstract::Primary heart tumours in the paediatric population are very rare and they range from 0.01% to 0.04%. Most are benign lesions of which about half are rhabdomyomas. Rhabdomyoma tumour diagnosis is associated with a 75-80% risk of tuberous sclerosis complex (TSC). TSC are characterised with numerous changes of hamartoma-...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2017.0119
更新日期:2018-01-01 00:00:00
abstract::A comparison of the data published in anatomy textbooks and anthropological tables does not reveal any change in basic heart dimensions during the period since the beginning of the 20th century to nowadays. However, normal values of many other parameters have changed up to 30% over the same period. These changes may b...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2006-11-01 00:00:00
abstract::The studies were carried out on the subthalamus of adult guinea pigs. Golgi impregnation, Nissl and Klüver-Barrera methods were used for the study. In Nissl stained sections the subthalamic neuronal population consists of multipolar, fusiform, oval and pear-shaped perikarya. In two studied areas: nucleus subthalamicus...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::Typological differentiation of coronary arteries binds to various areas of vascularisation, which could suggest essential differences between vasculatory dimensions. There are not many papers analysing the influence of heart vascularisation on epicardial vessel dimensions during postnatal human life, furthermore, ther...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2003-02-01 00:00:00
abstract::The paper presents abnormal craniofacial morphology of an adult male afflicted with premature closure of the sagittal suture. The skull is well preserved and there are no visible traits of surgical management which would be aimed to correctcranial deformation. In consequence of the restricted cranial development, some...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.2014.0014
更新日期:2014-02-01 00:00:00
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journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2017.0039
更新日期:2017-01-01 00:00:00
abstract::The role of the parafollicular (C) cells, the second most important cells in the thyroid gland, has not hitherto been clarified. They are considered to be disperse neuroendocrine cells of the APUD system and synthesise and release many of the regulatory peptides. Few publications are concerned with the evaluation of t...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2003-11-01 00:00:00
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journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2019.0134
更新日期:2020-01-01 00:00:00
abstract::Importance is placed on aberrant arteries in the radiological and surgical literature. A normal left brachiocephalic trunk is characteristic for the right aortic arch. However, an aberrant left brachiocephalic trunk arising as the last branch of the aortic arch on the left side has not yet been described in the litera...
journal_title:Folia morphologica
pub_type: 杂志文章,评审
doi:
更新日期:2005-02-01 00:00:00
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journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2020.0022
更新日期:2020-02-19 00:00:00
abstract::The rate of growth of the left common carotid artery during gestation has not been sufficiently evaluated. The present study was performed on 128 spontaneously aborted human foetuses aged 15-34 weeks to compile normative data for the dimensions of the left common carotid artery at varying gestational ages. Using anato...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2008-08-01 00:00:00
abstract::Localisation of the diaphorase activity of nicotinamide adenine dinucleotide phosphate (NADPH-d), acting as a marker of nitric oxide synthesis (NOS), was studied in the thymus of the rat, mouse and rabbit. The NADPH-d-active cells observed in the rat thymus were irregular in shape with numerous projections and were lo...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::The cochlear ganglion was investigated in serially sectioned human embryos at developmental stages 18 and 19 (44-46 postovulatory days). During this period the cochlear ganglion is separated from the vestibular ganglion, and it is adjacent to the cochlear duct. In embryos of investigated stages fibers of the cochlear ...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Congenital anomalies of the coronary arteries (CAs) are rare and are often diagnosed incidentally during a conventional coronary angiography. Recently, the incidence of these congenital defects is on the rise particularly after the introduction of the electrocardiography (ECG) gated coronary computed tomogra...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2016.0053
更新日期:2017-01-01 00:00:00
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journal_title:Folia morphologica
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journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2019.0080
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journal_title:Folia morphologica
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更新日期:2009-11-01 00:00:00
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journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.2014.0050
更新日期:2014-08-01 00:00:00
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journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2020.0048
更新日期:2020-05-12 00:00:00
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journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2018.0072
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:The pterygoid hamulus (PH) is a small protrusion on the base of the pterygoid process of the sphenoid bone. PH is a site of insertion of many muscles and ligaments. Its topography can determine predilection for developing the pterygoid hamulus bursitis (PHB). MATERIALS AND METHODS:The study was conducted ba...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2019.0049
更新日期:2020-01-01 00:00:00
abstract::The authors retrospectively reviewed the cytological slides of 44 histopathologically confirmed fibroepithelial lesions of the breast, of which 11 were fibroadenoma (FA), 19 benign phyllodes tumours (PTLGM), 8 borderline (PTBM) and 6 malignant (PTHGM). The 2 FA misdiagnosed as PTLGM in cytological smears were both of ...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2004-02-01 00:00:00
abstract::This study was conducted to assess the effect of melatonin on the structure of testis and spermatogenesis dynamics in neonate vitrified testis grafts. Neonate vitrified testes, candidates for transplantation heterotopically to experiment or control groups, were warmed in thawing media which had or did not have a suppl...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2011-05-01 00:00:00
abstract:BACKGROUND:An understanding of the left main coronary artery (LMCA) anatomy is important for accurate diagnosis and therapy. We aimed to investigate LMCA anatomy via 128-multisliced coronary computed-tomography-angiography (CCTA) in patients with normal LMCA. MATERIALS AND METHODS:A total of 201 CCTA studies were incl...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:10.5603/FM.a2016.0059
更新日期:2017-01-01 00:00:00
abstract::The purpose of this study was to analyse the occurrence of variants of anomalous insertions of the anterior horn of the medial meniscus in human knee joints. The study was carried out on 78 human lower limbs of both sexes (42 males and 36 females). Out of 78 knee joints, 10 knee joints (12.82%) presented atypical atta...
journal_title:Folia morphologica
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00