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Impact of Sickle Cell Disease in Renal Arteries Blood Flow Indices Using Ultrasonography
Mohamed Abdalla Eltahir,
Mohamed Elfadil Mohamed Gar-elnabi,
Mohammed Ahmed Ali Omer,
Osman Abdelgadir,
Elsafi Ahmed Abdallah
Issue:
Volume 5, Issue 2, March 2017
Pages:
9-13
Received:
21 February 2017
Accepted:
3 March 2017
Published:
15 March 2017
Abstract: The aim of this study was to evaluate the impact of sickle cell diseases (SCD) on renal arteries blood flow indices by using of color Doppler ultrasonography (CDU) in addition to relationships with age and body mass index (BMI). The method adapted was an experimental study among a sample consists of 115 SCD patients and 100 as control group. CDU of the main renal and segmental arteries performed among all patients and controls. All the patients were scanned in stable state condition. The results analysis carried out by EXCELL software for the collected variables which revealed that: the patients showed higher resistivity index RI and pulsatility index PI than control subjects (for patients 0.8 & 1.5 and 0.7 & 1.4 for control group. The significant positive correlation between RI and age (r = 0.194, and r = 0.061) for patients and control group respectively in the right renal artery and as well the RI correlated proportionally with BMI (r=0.53) for patients and (r=0.05) for control group.
Abstract: The aim of this study was to evaluate the impact of sickle cell diseases (SCD) on renal arteries blood flow indices by using of color Doppler ultrasonography (CDU) in addition to relationships with age and body mass index (BMI). The method adapted was an experimental study among a sample consists of 115 SCD patients and 100 as control group. CDU of...
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Study of Common Requested Radiographs and Relative Exposure Dose in Qassim State
Abdulrahman Abdullah Saad Alsayyari,
Mohammed Ahmed Ali Omer,
Nasraldeen Alnaeem Mohammed Alkhidir,
Abdelmoneim Saeed Ahmed Auod
Issue:
Volume 5, Issue 2, March 2017
Pages:
14-18
Received:
20 February 2017
Accepted:
1 March 2017
Published:
18 March 2017
Abstract: The objective of the article was to study the common requested radiographs and relative exposure dose in Qassim state in Kingdom of Saudi Arabia. The method was retrospective and analytical study for collected variables as radiographs, relative entrance surface dose (ESD) and the effective dose, patient age, gender and causative factors. The analysis with excel software revealed that: the common requested radiographs were skull, abdomen and chest with male incidence as 75%, 72.2% and 64% respectively relative to whole sample. Traffic accident (71%) and fall-down (45%) were the most causative factors among male and female respectively, with injuries as skull fissure fracture (77%) and intracranial hemorrhage (23%). The skull radiographs noted among the age group of 11-21 years and peaking at 36% among the age group of 22-32 years. The requested abdominal radiographs appeared among the age group of 13-21 years; with frequency of (19%) and peaking at 30% among the age group of 22-30 years; with injuries as spleen ruptures (42%) and liver (27%). The chest radiographs observed among age group of 3-13 years; with frequency of 4% and peaking among age groups of 14-24 & 25-35 years old with frequencies of 19% and 21% respectively, and injuries as Ribs fracture (55%), ribs dislocation (15%), pierced lung (20%) hemorrhage (10%). The average ESD for abdomen, skull and the chest radiographs were 1.93±0.8, 1.53±0.6 and 0.21±0.2 mGy which were increase linearly following the aging. And the average effective doses were 0.24±0.1, 0.1±0.1 and 0.4±0.2 mSv respectively.
Abstract: The objective of the article was to study the common requested radiographs and relative exposure dose in Qassim state in Kingdom of Saudi Arabia. The method was retrospective and analytical study for collected variables as radiographs, relative entrance surface dose (ESD) and the effective dose, patient age, gender and causative factors. The analys...
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Rectal Carcinoma, Recent Staging Strategy by MRI Using Diffusion Weighted Sequence
Waleed Abdelfattah Mousa,
Tarek Fawzy Abdella
Issue:
Volume 5, Issue 2, March 2017
Pages:
19-25
Received:
19 December 2016
Accepted:
3 January 2017
Published:
25 March 2017
Abstract: Objective: MRI is currently the imaging modality of choice for the detection, characterization, and staging of rectal cancer. A variety of examinations have been used for preoperative staging of rectal cancer, including digital rectal examination, endorectal (endoscopic) ultrasound, CT, and MRI. Endoscopic ultrasound is the imaging modality of choice for small and small superficial tumors. MRI is superior to CT for assessing invasion to adjacent organs and structures, especially low tumors that carry a high risk of recurrence. Background: Colorectal cancer (CRC) is the third most common cancer in both sexes combined worldwide, after prostate and breast cancer with an incidence of 40 in 100,000. Rectal carcinoma accounts for more than one-third of colorectal tumors and is associated with significant morbidity and mortality. Currently, MRI using diffusion weighted sequence is the most sensitive and specific modality in staging rectal cancer as it is able to depict the mesorectal fascia and its relation to the tumor margins precisely. Methods: This study included 50 patients, (32 male and 18 female) previously diagnosed as cancer rectum based on proctoscope and histopathological biopsy. The age range of the patients was from 18 years to 78 years. All patients will be subjected to the following: detailed history, clinical examination, proctoscopic assessment and histopathological data. All patients underwent MRI of the pelvis specifically cancer rectum protocol. Results: The most frequently encountered clinical presentation among cancer rectum patients was bleeding per rectum (14), constipation (26), incidentally discovered liver metastasis (6) and intestinal obstruction (4). MRI evaluation of T staging in correlation to the histopathological examination showed sensitivity (80%), specificity (93%), accuracy (94%). Lymph node (LN) metastatic spread was evaluated by MRI and showed sensitivity (87%), specificity (92%), accuracy (92.6%), PPV (84.8%) and NPV (96.7%). Regarding circumferential resection margin (CRM) MRI assessment revealed; sensitivity (96%), specificity (94%), accuracy (96%), PPV (95%) and NPV (94.3%). Conclusions: MRI is an accurate and sensitive imaging method delineating tumoral margins, mesorectal fascia involvement, lymph nodes, and distant metastasis. MRI can accurately delineate the mesorectal fascia involvement, which is one of the main decision points in planning treatment.
Abstract: Objective: MRI is currently the imaging modality of choice for the detection, characterization, and staging of rectal cancer. A variety of examinations have been used for preoperative staging of rectal cancer, including digital rectal examination, endorectal (endoscopic) ultrasound, CT, and MRI. Endoscopic ultrasound is the imaging modality of choi...
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Post Renal Transplant Surgical Complications; MRI Standard Applications and Diagnostic Outcomes
Tarek Fawzy Abd Ella,
Waleed Abdelfattah Mousa
Issue:
Volume 5, Issue 2, March 2017
Pages:
26-33
Received:
31 December 2016
Accepted:
25 January 2017
Published:
25 March 2017
Abstract: Objective: Fast MR imaging sequences together with paramagnetic contrast agents, offer multiple advantages in the assessment of renal function. It provides cross sectional and vascular information without the risk of ionizing radiation, iodinated contrast or arterial catheterization. Post transplantation complications can be grouped as surgical or medical. Immediate surgical complications include renal artery thrombosis or stenosis, urinary leak or lymphocele. Renal allograft frequently require repeated imaging studies during the immediate post-operative period and various times thereafter, when renal function is compromised. Background: End stage renal disease is common and can result from a variety of diseases. Kidney transplantation from living-related donors offered the best prognosis. Imaging modalities that are currently used to evaluate transplanted kidneys are ultrasound (US), computed tomography (CT), scintigraphy, intravenous urography (IVU), contrast angiography, and magnetic resonance imaging (MRI). Methods: This study was conducted on 181 renal transplant recipients. Recipients were 139 males and 42 females. Their age ranged from 20 to 58 years (mean age 39 years). The patients underwent clinical assessment, Laboratory investigations, and different Radiological imaging procedures as: I- Gray scale and color Doppler ultrasonography. II- Magnetic Resonance Imaging. 3D Gd-enhanced MRA. MR Urography. Selective IA-DSA of the graft artery. III- Percutaneous catheter nephrostomy (PCN) and antegrade pyelography. IV- Radio-isotope diuretic renogram using 99m Tc-MAG3. Results: 30 renal transplants were examined by MRI in the 1st 2 weeks after renal transplantation. At the end of 1st 2 weeks, MR examinations were carried out, as basal studies (including MRI, MRA and MRU) for 98 transplants. From this group, 64 transplants were subjected to other MR examinations. After the 1st 2 weeks, 53 transplants were subjected to MR examinations for the 1st time at variable post-transplant duration. Among the studied 181 renal transplants, MR examinations detected 3 cases with graft arteries thrombosis (1.6%), 10 with graft arteries stenosis (5.5%), 6 with segmental infarctions (3.3%), 3 cases with graft intrarenal arteries pseudo-aneurysms (1.6%) and 2 cases with arterio- venous fistulae (1.1%) after graft biopsies. Conclusion: MRI is highly recommended to evaluate intra-/extra-renal graft vascular lesions, urinary obstructive syndrome, compressive collections (urinoma, lymphocele), inflammatory and tumoral lesions of the renal graft.
Abstract: Objective: Fast MR imaging sequences together with paramagnetic contrast agents, offer multiple advantages in the assessment of renal function. It provides cross sectional and vascular information without the risk of ionizing radiation, iodinated contrast or arterial catheterization. Post transplantation complications can be grouped as surgical or ...
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