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  1. Article ; Online: Vascular compression syndromes in the abdomen and pelvis: a concise pictorial review.

    M Koshy, Reshma / Chee, Ryan K W / Wilson, Mitchell P / Singh, Ranjit / Mathew, Rishi P / Tu, Wendy / Low, Gavin

    Abdominal radiology (New York)

    2024  Volume 49, Issue 5, Page(s) 1747–1761

    Abstract: Vascular compression syndromes are a diverse group of pathologies that can manifest asymptomatically and incidentally in otherwise healthy individuals or symptomatically with a spectrum of presentations. Due to their relative rarity, these syndromes are ... ...

    Abstract Vascular compression syndromes are a diverse group of pathologies that can manifest asymptomatically and incidentally in otherwise healthy individuals or symptomatically with a spectrum of presentations. Due to their relative rarity, these syndromes are often poorly understood and overlooked. Early identification of these syndromes can have a significant impact on subsequent clinical management. This pictorial review provides a concise summary of seven vascular compression syndromes within the abdomen and pelvis including median arcuate ligament (MAL) syndrome, superior mesenteric artery (SMA) syndrome, nutcracker syndrome (NCS), May-Thurner syndrome (MTS), ureteropelvic junction obstruction (UPJO), vascular compression of the ureter, and portal biliopathy. The demographics, pathophysiology, predisposing factors, and expected treatment for each compression syndrome are reviewed. Salient imaging features of each entity are illustrated through imaging examples using multiple modalities including ultrasound, fluoroscopy, CT, and MRI.
    MeSH term(s) Humans ; Renal Nutcracker Syndrome/diagnostic imaging ; Median Arcuate Ligament Syndrome/diagnostic imaging ; Diagnostic Imaging/methods ; Abdomen/diagnostic imaging ; Abdomen/blood supply ; Diagnosis, Differential ; Vascular Diseases/diagnostic imaging ; Pelvis/diagnostic imaging ; Pelvis/blood supply ; May-Thurner Syndrome/diagnostic imaging ; May-Thurner Syndrome/complications ; Superior Mesenteric Artery Syndrome/diagnostic imaging
    Language English
    Publishing date 2024-04-29
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2839786-1
    ISSN 2366-0058 ; 2366-004X
    ISSN (online) 2366-0058
    ISSN 2366-004X
    DOI 10.1007/s00261-024-04315-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1262: Show issues Location:
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  2. Article: Erratum: Chest radiographs of cardiac devices (Part 1): Cardiovascular implantable electronic devices, cardiac valve prostheses and Amplatzer occluder devices.

    Mathew, Rishi P / Alexander, Timothy / Patel, Vimal / Low, Gavin

    SA journal of radiology

    2021  Volume 25, Issue 1, Page(s) 2256

    Abstract: This corrects the article DOI: 10.4102/sajr.v23i1.1730.]. ...

    Abstract [This corrects the article DOI: 10.4102/sajr.v23i1.1730.].
    Language English
    Publishing date 2021-11-17
    Publishing country South Africa
    Document type Published Erratum
    ZDB-ID 2475950-8
    ISSN 2078-6778 ; 1027-202X
    ISSN (online) 2078-6778
    ISSN 1027-202X
    DOI 10.4102/sajr.v25i1.2256
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Clinical presentation, diagnosis and management of aerodigestive tract foreign bodies in the paediatric population: Part 2.

    Mathew, Rishi P / Liang, Teresa I-Han / Kabeer, Ahamed / Patel, Vimal / Low, Gavin

    SA journal of radiology

    2021  Volume 25, Issue 1, Page(s) 2027

    Abstract: Children, especially toddlers, because of their behaviour, physiology and anatomical characteristics such as oral exploration of their surroundings, have a tendency to place objects in their mouth. Therefore, ingestion or aspiration of foreign bodies ( ... ...

    Abstract Children, especially toddlers, because of their behaviour, physiology and anatomical characteristics such as oral exploration of their surroundings, have a tendency to place objects in their mouth. Therefore, ingestion or aspiration of foreign bodies (FBs) in children is a potentially life-threatening and common problem seen across the world. In this second part of our pictorial review on ingested and aspirated FBs, we focus on the paediatric population, reviewing the current literature and examining the epidemiology, clinical presentation, anatomic considerations, appropriate imaging modalities, key imaging characteristics associated with clinically relevant FBs in the emergency department (ED) and current management protocols.
    Language English
    Publishing date 2021-03-23
    Publishing country South Africa
    Document type Journal Article ; Review
    ZDB-ID 2475950-8
    ISSN 2078-6778 ; 1027-202X
    ISSN (online) 2078-6778
    ISSN 1027-202X
    DOI 10.4102/sajr.v25i1.2027
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Chest radiographs of cardiac devices (Part 1): Cardiovascular implantable electronic devices, cardiac valve prostheses and Amplatzer occluder devices.

    Mathew, Rishi P / Alexander, Timothy / Patel, Vimal / Low, Gavin

    SA journal of radiology

    2019  Volume 23, Issue 1, Page(s) 1730

    Abstract: Several new innovative cardiac devices have been created over the last few decades. Chest radiographs (CXRs) are the most common imaging investigations undertaken because of their value in evaluating the cardiorespiratory system. It is important for the ... ...

    Abstract Several new innovative cardiac devices have been created over the last few decades. Chest radiographs (CXRs) are the most common imaging investigations undertaken because of their value in evaluating the cardiorespiratory system. It is important for the interpreting radiologist to not only identify these iatrogenic objects but also to assess for their accurate placement, as well as for any complications related to their placement, which may be seen either on the immediate post-procedural CXR or on a follow-up CXR.
    Language English
    Publishing date 2019-07-31
    Publishing country South Africa
    Document type Journal Article
    ZDB-ID 2475950-8
    ISSN 2078-6778 ; 1027-202X
    ISSN (online) 2078-6778
    ISSN 1027-202X
    DOI 10.4102/sajr.v23i1.1730
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Chest radiographs of cardiac devices (Part 1): Lines, tubes, non-cardiac medical devices and materials.

    Mathew, Rishi P / Alexander, Timothy / Patel, Vimal / Low, Gavin

    SA journal of radiology

    2019  Volume 23, Issue 1, Page(s) 1729

    Abstract: Chest radiographs (CXRs) are the most common imaging investigations undertaken because of their value in evaluating the cardiorespiratory system. They play a vital role in intensive care units for evaluating the critically ill. It is therefore very ... ...

    Abstract Chest radiographs (CXRs) are the most common imaging investigations undertaken because of their value in evaluating the cardiorespiratory system. They play a vital role in intensive care units for evaluating the critically ill. It is therefore very common for the radiologist to encounter tubes, lines, medical devices and materials on a daily basis. It is important for the interpreting radiologist not only to identify these iatrogenic objects, but also to look for their accurate placement as well as for any complications related to their placement, which may be seen either on the immediate post-procedural CXR or on a follow-up CXR. In this article, we discussed and illustrated the routinely encountered tubes and lines that one may see on a CXR as well as some of their complications. In addition, we also provide a brief overview of other important non-cardiac medical devices and materials that may be seen on CXRs.
    Language English
    Publishing date 2019-07-29
    Publishing country South Africa
    Document type Journal Article ; Review
    ZDB-ID 2475950-8
    ISSN 2078-6778 ; 1027-202X
    ISSN (online) 2078-6778
    ISSN 1027-202X
    DOI 10.4102/sajr.v23i1.1729
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Erratum: Chest radiographs - Lines, tubes, non-cardiac medical devices and materials.

    Mathew, Rishi P / Alexander, Timothy / Patel, Vimal / Low, Gavin

    SA journal of radiology

    2019  Volume 23, Issue 1, Page(s) 1808

    Abstract: This corrects the article DOI: 10.4102/sajr.v23i1.1729.]. ...

    Abstract [This corrects the article DOI: 10.4102/sajr.v23i1.1729.].
    Language English
    Publishing date 2019-12-05
    Publishing country South Africa
    Document type Published Erratum
    ZDB-ID 2475950-8
    ISSN 2078-6778 ; 1027-202X
    ISSN (online) 2078-6778
    ISSN 1027-202X
    DOI 10.4102/sajr.v23i1.1808
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Chest radiographs of cardiac devices (Part 2): Ventricular assist devices.

    Mathew, Rishi P / Alexander, Timothy / Patel, Vimal / Low, Gavin

    SA journal of radiology

    2019  Volume 23, Issue 1, Page(s) 1732

    Abstract: Heart failure is considered a worldwide pandemic affecting 26 million people globally. Patients who are unfit or waiting for cardiac transplantation may benefit from alternate mechanical support therapies using ventricular assist devices. It is not ... ...

    Abstract Heart failure is considered a worldwide pandemic affecting 26 million people globally. Patients who are unfit or waiting for cardiac transplantation may benefit from alternate mechanical support therapies using ventricular assist devices. It is not uncommon for radiologists, especially those working in institutions with a high volume of cardiac transplantations, to be presented with radiographs containing these devices. The role of the radiologist is not only to accurately identify these devices, but also to evaluate for any complications.
    Language English
    Publishing date 2019-07-31
    Publishing country South Africa
    Document type Journal Article
    ZDB-ID 2475950-8
    ISSN 2078-6778 ; 1027-202X
    ISSN (online) 2078-6778
    ISSN 1027-202X
    DOI 10.4102/sajr.v23i1.1732
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Clinical presentation, diagnosis and management of aerodigestive tract foreign bodies in the adult population: Part 1.

    Mathew, Rishi P / Sarasamma, Sreekutty / Jose, Merin / Toms, Ajith / Jayaram, Vinayak / Patel, Vimal / Low, Gavin

    SA journal of radiology

    2021  Volume 25, Issue 1, Page(s) 2022

    Abstract: In the adult population, foreign bodies may be accidentally or intentionally ingested or even inserted into a body cavity. The majority of accidentally ingested foreign bodies pass through the alimentary tract without any complications and rarely require ...

    Abstract In the adult population, foreign bodies may be accidentally or intentionally ingested or even inserted into a body cavity. The majority of accidentally ingested foreign bodies pass through the alimentary tract without any complications and rarely require intervention. Accidentally ingested foreign bodies are usually fish bones, bones of other animals, and dentures. Oesophageal food impaction is the commonest cause of oesophageal foreign bodies in the Western hemisphere. Intentionally ingested foreign bodies may be organic or inorganic, and often require intervention; these patients have either underlying psychological or mental disease or are involved in illegal activities such as body packing, which involves trafficking narcotics. Imaging plays a crucial role in not only identifying the type, number and location of the foreign body but also in excluding any complications. In this comprehensive pictorial review, we provide an overview of the spectrum of foreign bodies ingested in adults, emphasising the role of various imaging modalities, their limitations and common foreign body mimickers on imaging.
    Language English
    Publishing date 2021-03-23
    Publishing country South Africa
    Document type Journal Article ; Review
    ZDB-ID 2475950-8
    ISSN 2078-6778 ; 1027-202X
    ISSN (online) 2078-6778
    ISSN 1027-202X
    DOI 10.4102/sajr.v25i1.2022
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  9. Article ; Online: Gossypibomas, a surgeon's nightmare-patient demographics, risk factors, imaging and how we can prevent it.

    Mathew, Rishi P / Thomas, Binston / Basti, Ram S / Suresh, Hadihally B

    The British journal of radiology

    2017  Volume 90, Issue 1070, Page(s) 20160761

    Abstract: Objective: Gossypibomas are a cottonoid matrix left behind following surgery. Owing to the legal issues associated with it, very few literature studies are available online, most of them being case reports. The purpose of our study was to identify the ... ...

    Abstract Objective: Gossypibomas are a cottonoid matrix left behind following surgery. Owing to the legal issues associated with it, very few literature studies are available online, most of them being case reports. The purpose of our study was to identify the patient demographics, risk factors and imaging features.
    Methods: Six surgically identified and histopathologically confirmed cases of gossypibomas recorded over a period of 5 years from a single tertiary institution were retrospectively evaluated for patient demographics [sex, age, body mass index (BMI)], type of surgery and duration from time of surgery to onset of symptoms. Ultrasound and CT images obtained from our hospital database were evaluated for their characteristic pattern. Statistics used included percentage and frequency.
    Results: Females formed the bulk of our patients and the mean BMI of our patients was 24.25. The interval between surgery and symptom presentation ranged from 2 months to 7 years. The most common imaging patterns observed on ultrasound and CT were a thick-walled hypoechoic lesion with a strong posterior acoustic shadowing and a "spongiform pattern", respectively.
    Conclusion: A detailed patient history, taking into account radiologist-surgeon interaction, along with familiarization of the various risk factors and imaging patterns can bring about an accurate diagnosis of a gossypiboma. Advances in knowledge: Our study showed that the female sex, especially those undergoing gynaecology-related surgery such as hysterectomy and patients with a high BMI were at risk of gossypibomas. The combination of a hypoechoic lesion with strong posterior shadowing on ultrasound along with a spongiform pattern on CT was highly characteristic for gossypiboma on imaging.
    MeSH term(s) Adult ; Female ; Foreign Bodies/diagnostic imaging ; Foreign Bodies/prevention & control ; Humans ; Male ; Middle Aged ; Postoperative Complications/diagnostic imaging ; Postoperative Complications/prevention & control ; Retrospective Studies ; Risk Factors ; Surgeons ; Surgical Sponges ; Tomography, X-Ray Computed ; Ultrasonography
    Language English
    Publishing date 2017-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 2982-8
    ISSN 1748-880X ; 0007-1285
    ISSN (online) 1748-880X
    ISSN 0007-1285
    DOI 10.1259/bjr.20160761
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ue I Zs.11: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  10. Article ; Online: Accuracy of findings in the diagnosis of uterine adenomyosis on ultrasound.

    Sam, Medica / Raubenheimer, Monique / Manolea, Florin / Aguilar, Hector / Mathew, Rishi P / Patel, Vimal H / Low, Gavin

    Abdominal radiology (New York)

    2019  Volume 45, Issue 3, Page(s) 842–850

    Abstract: Purpose: MRI is the current imaging gold standard to diagnose adenomyosis, but access is often limited by high costs and availability. Transvaginal ultrasound provides a cost-effective, accurate and readily available alternative. The objective of our ... ...

    Abstract Purpose: MRI is the current imaging gold standard to diagnose adenomyosis, but access is often limited by high costs and availability. Transvaginal ultrasound provides a cost-effective, accurate and readily available alternative. The objective of our study was to determine the diagnostic accuracy of commonly described sonographic findings in predicting uterine adenomyosis.
    Methods: This retrospective study evaluated 649 MRI studies performed to investigate adenomyosis with a preceding transvaginal ultrasound within 12 months between 2013 and 2018. Two blinded reviewers assessed the presence or absence of six sonographic features: bulky uterus, heterogeneous myometrium, streaky myometrium, myometrial cysts, endometrial-myometrial interface ill-definition, and echogenic linear striations. The sensitivity, specificity, positive and negative predictive values of these features were calculated individually and in combination when compared to MRI as the standard of reference.
    Results: Adenomyosis was found in 315 (48.5%) cases on MRI. Ultrasound had a high specificity of 91.8% (95% CI 88.4 to 94.6%) but was less sensitive (36.8% (95% CI 31.5 to 42.4%)) for detecting adenomyosis. Comorbid fibroids or focal adenomyosis did not affect diagnostic accuracy. All six variables were significantly more common in patients with adenomyosis compared to those without. Individually, 'bulky uterus' and 'heterogenous myometrium' each demonstrated a mean sensitivity and specificity > 50%. The best dual combined variables were 'bulky uterus' + 'ill definition of the endometrial-myometrial interface' (sensitivity 39%, specificity 91%). The best triple combined variables were 'bulky uterus', 'heterogeneous myometrium' + 'ill definition of the endometrial-myometrial interface' (sensitivity 38%, specificity 93%).
    Conclusion: Transvaginal ultrasound is highly specific for diagnosing uterine adenomyosis, providing a cost-effective and readily available alternative to MRI.
    MeSH term(s) Adenomyosis/diagnostic imaging ; Adult ; Aged ; Female ; Humans ; Magnetic Resonance Imaging/methods ; Middle Aged ; Predictive Value of Tests ; Retrospective Studies ; Sensitivity and Specificity ; Ultrasonography/methods
    Language English
    Publishing date 2019-09-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2839786-1
    ISSN 2366-0058 ; 2366-004X
    ISSN (online) 2366-0058
    ISSN 2366-004X
    DOI 10.1007/s00261-019-02231-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1262: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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