18 research outputs found
Ureter tracking and segmentation in CT urography (CTU) using COMPASS
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/134875/1/mp1412_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/134875/2/mp1412.pd
64 MS-CTU: Review of techniques and spectrum of the ureteric diseases
Objective: The study aims to clarify the sensitivity of the CTU, and if is it coast effective and time effective to be used as first and the one-stop shop imaging modality for the diagnosis of the different ureteric diseases.Patients and methods: 400 patients with different urinary tract complaints (hematuria and/or renal colic) did triphasic CTU examinations, for diagnosis of suspected obstructive or traumatic ureteric uropathy from January 2014 to October 2016. These patients were filtered from a larger number of patients – who were presented with urinary tract complaints by plain KUB X ray and US, which showed no explaining kidneys or urinary bladder pathology.Results: Ureteric duplication was detected in 5 (1.25%) patients, ectopic ureter in one patient (0.25%), UPJ stricture in 4 patients (1%), PUJ vascular impression in 2 patients (0.5%), ureteric calculus in 103 patients (25.75%), pyogenic ureteritis in 8 patients (2%), ureteritis cystica in one patient (0.25%) TCC in 3 patients (0.75%), PRPF in one patient (0.025%) and Trauma in one patient (0.025%).Conclusion: CTU is very sensitive tool of imaging and could be confidently considered the one-stop shop imaging tool for accurate diagnosis of the different ureteric lesions
Role of MDCT (128 Slice Scanner) in Acute Abdomen
AIM :
1. To evaluate the accuracy of MDCT (128 slices) in the diagnosis of acute abdomen
2. To assess the efficacy of MDCT in differentiating the various pathological causes of
acute abdomen.
3. To explore the sensitivity and specificity of MDCT in acute abdomen cases with
intra-operative surgical finding/ histopathological findings/ clinical findings as
reference standards.
MATERIALS AND METHODS :
Prospective study on 73 subjects with acute pain abdomen was subjected to
MDCT. MDCT was done with SIEMENS SOMATOM DEFINITION EDGE 128
SLICE SCANNER. The radiological findings at CT were compared with those at
Surgery / clinical finding and with the available histopathological results to verify the
efficacy of 128-slice MDCT in the preoperative evaluation of the acute abdomen cases.
RESULT :
In our study the sensitivity of MDCT was 97.10% and specificity was 75%. The
overall Positive Predictable Value was 98.53% and negative predictive value was 60%
and accuracy rate was 95.89%.
CONCLUSION :
We conclude that MDCT has high accuracy and sensitivity. In clinically
inconclusive cases of acute abdomen, the consultant will favor for MDCT in order to
arrive at an appropriate provisional diagnosis. The results obtained in the study were
comparable to pioneer studies conducted worldwide. However major limitation was small
sample size
Diseases of the Abdomen and Pelvis 2018-2021: Diagnostic Imaging - IDKD Book
Gastrointestinal disease; PET/CT; Radiology; X-ray; IDKD; Davo
Case series of breast fillers and how things may go wrong: radiology point of view
INTRODUCTION: Breast augmentation is a procedure opted by women to overcome sagging
breast due to breastfeeding or aging as well as small breast size. Recent years have shown the
emergence of a variety of injectable materials on market as breast fillers. These injectable
breast fillers have swiftly gained popularity among women, considering the minimal
invasiveness of the procedure, nullifying the need for terrifying surgery. Little do they know
that the procedure may pose detrimental complications, while visualization of breast
parenchyma infiltrated by these fillers is also deemed substandard; posing diagnostic
challenges. We present a case series of three patients with prior history of hyaluronic acid and
collagen breast injections.
REPORT: The first patient is a 37-year-old lady who presented to casualty with worsening
shortness of breath, non-productive cough, central chest pain; associated with fever and chills
for 2-weeks duration. The second patient is a 34-year-old lady who complained of cough, fever
and haemoptysis; associated with shortness of breath for 1-week duration. CT in these cases
revealed non thrombotic wedge-shaped peripheral air-space densities.
The third patient is a 37‐year‐old female with right breast pain, swelling and redness for 2-
weeks duration. Previous collagen breast injection performed 1 year ago had impeded
sonographic visualization of the breast parenchyma. MRI breasts showed multiple non-
enhancing round and oval shaped lesions exhibiting fat intensity.
CONCLUSION: Radiologists should be familiar with the potential risks and hazards as well
as limitations of imaging posed by breast fillers such that MRI is required as problem-solving
tool
Characterization of alar ligament on 3.0T MRI: a cross-sectional study in IIUM Medical Centre, Kuantan
INTRODUCTION: The main purpose of the study is to compare the normal anatomy of alar
ligament on MRI between male and female. The specific objectives are to assess the prevalence
of alar ligament visualized on MRI, to describe its characteristics in term of its course, shape and
signal homogeneity and to find differences in alar ligament signal intensity between male and
female. This study also aims to determine the association between the heights of respondents
with alar ligament signal intensity and dimensions.
MATERIALS & METHODS: 50 healthy volunteers were studied on 3.0T MR scanner
Siemens Magnetom Spectra using 2-mm proton density, T2 and fat-suppression sequences. Alar
ligament is depicted in 3 planes and the visualization and variability of the ligament courses,
shapes and signal intensity characteristics were determined. The alar ligament dimensions were
also measured.
RESULTS: Alar ligament was best depicted in coronal plane, followed by sagittal and axial
planes. The orientations were laterally ascending in most of the subjects (60%), predominantly
oval in shaped (54%) and 67% showed inhomogenous signal. No significant difference of alar
ligament signal intensity between male and female respondents. No significant association was
found between the heights of the respondents with alar ligament signal intensity and dimensions.
CONCLUSION: Employing a 3.0T MR scanner, the alar ligament is best portrayed on coronal
plane, followed by sagittal and axial planes. However, tremendous variability of alar ligament as
depicted in our data shows that caution needs to be exercised when evaluating alar ligament,
especially during circumstances of injury
Diabetes Insipidus
The first chapter of the book reports on the management of Langerhans cell histiocytosis (LCH)-induced central diabetes insipidus and its associated endocrinological/neurological sequelae in the national survey. The next chapter addresses DI and head injuries. Next, the management of neuroendocrine instability during maintenance of potential organ donors is described. Organ transplants have gradually increased worldwide. To have maintenance of appropriate potential organs, AVP is needed. Furthermore, nephrogenic DI-the potential therapeutic drugs and analysis of membrane protein stability is the topic of the next two chapters, followed by new insights into the diagnosis and management of pregnancy-related DI. The seventh chapter reports on the problems with differential diagnosis in a case of central DI in a female patient with bipolar disorder. The lithium treatment usually resulted in nephrogenic DI. Finally, over the last years, the development of MRI imaging on the pituitary gland with the stalk and hypothalamus has advanced. The final chapter interprets imaging techniques in DI in detail