With the advanced Toshiba 1.5T superconducting magnetic resonance imaging (MRI), it is open, quiet, fast, safe and comprehensive; it maximizes the patient’s examination comfort and scan success rate, thus obtaining better image images and making faster and more accurate diagnosis.
MRI examination [contraindications
Some patients are not suitable for MRI, which are contraindications and relative contraindications, please pay attention to them to ensure the safety of the examination.
The following conditions are absolute contraindications and are not suitable for MRI.
1, patients with pacemakers, neurostimulators, artificial metal heart valves, etc.
2, those with aneurysm clips (except non-paramagnetic such as titanium)
3, those with intraocular metal foreign bodies, inner ear implants, metal prostheses, metal prostheses, metal joints, and ferromagnetic foreign bodies in the body
4.Patients with early pregnancy within the third trimester of pregnancy.
5.Patients with severe hyperthermia.
The following conditions are relatively contraindicated, and MRI can be performed with appropriate disposition.
1, patients with metallic foreign bodies (metal implants, dentures, contraceptive rings), insulin pumps, etc. If MR examination must be performed, the examination should be performed with caution or after removal.
2, critically ill patients who require the use of life support systems.
3, patients with epilepsy (MRI should be performed under the premise of adequate symptom control)
4.Patients with claustrophobia, if MR examination is necessary, should be performed after the administration of an appropriate amount of sedation
5, uncooperative patients, such as: pediatric, should be performed after the administration of an appropriate amount of sedation.
6. Pregnant women and infants should be examined after obtaining the consent of the physician, patient and family.
MRI examination [indications
(A) Cranial MRI examination
1.Congenital cranial developmental abnormalities.
2, hydrocephalus.
3.Brain atrophy.
4.Stroke and cerebral hypoxia: cerebral infarction and cerebral hemorrhage, etc.
5, cerebrovascular disease.
6.Intracranial tumors and cysts.
7.Cranial trauma.
8, Intracranial infection and other inflammatory lesions.
9, cerebral white matter disease.
(B) MRI examination of the eye and orbital region
1, orbital anterior lesions.
2.Extra-cone lesions.
3, Intraocular lesions.
4, extraocular myopathy.
5. Optic nerve and its sheath lesions.
6.Ophthalmic lesions.
(C) MRI examination of nasopharynx
1.Malignant lesions in the nasopharynx.
2.Benign lesions in the nasopharynx.
3, benign and malignant tumors of the larynx.
(D) Pituitary thin layer MRI examination
1, endocrine disorders, hormone levels increased significantly.
2, pituitary adenoma.
(E) MRI examination of liver, biliary system, pancreas and spleen
1.Primary or metastatic tumors of the liver, biliary system, pancreas, and spleen, and hepatic cavernous hemangioma.
2.Hepatic parasitic diseases: such as hepatic encysticercosis.
3, diffuse liver disease: such as hepatic sclerosis, fatty liver, pigment; redundancy.
4.Hepatic, biliary, pancreatic and spleen congenital developmental abnormalities.
5, biliary obstruction: clarify the site and nature of obstruction.
6.Hepatic abscess.
7.Liver restricted nodular hyperplasia and hepatitis pseudotumor.
8.Follow-up and observation of the effect of surgery, radiotherapy, chemotherapy and other treatments.
9, pancreatitis and its complications.
(F) MRI examination of the gastrointestinal tract
1, esophageal lesions.
2, gastric lesions.
3, small intestine lesions.
4.Colon lesions.
(vii) Pelvic MRI examination
1, lesions of the bladder, ureter, prostate, seminal vesicles, uterus, ovaries and their adnexa.
2, pelvis and pelvic organ injuries.
(H) MRI examination of kidney
1.Masses in the kidney area.
2.Infectious lesions of the kidney: renal tuberculosis, perirenal abscess.
3, renal trauma.
4.Diffuse substantive lesions of the kidney.
5.Donor kidney vascular assessment before kidney transplantation.
6.Kidney implant and post-operative renal examination.
7.Congenital malformation of the kidney.
8.Allergic to iodine and contraindicated for contrast.
(ix) Adrenal MRI examination
1, functional adrenal lesions.
(1) primary aldosteronism.
(2) pheochromocytoma.
(3) Cortisolism.
(1) adrenal cortical hyperplasia.
(2) adrenocortical adenoma.
2. Non-functional adrenal lesions.
(1) non-functional adenoma.
(2) metastases.
(3) cysts.
(4) bone marrow lipoma.
(5) neuroblastoma buzz.
(6) adrenal tuberculosis.
(7) adrenal hemorrhage.
(J) MRI examination of peritoneal cavity and retroperitoneal space
1, primary tumor in the peritoneal cavity and retroperitoneal space.
2, lymph node lesions.
3, Bleeding, abscess, inflammatory lesions in the peritoneal cavity and retroperitoneal space.
4, Retroperitoneal fibrosis.
5.Identify free or restricted ascites.
6.Identify abdominal aorta and inferior vena cava lesions, such as aneurysm, venous embolism, and abnormal vascular development.
(XI) MRI examination of the spine
1, intradural tumors: including intramedullary and extradural tumors, subdural tumors, and epidural tumors.
2, spinal membrane bulge and spinal cord spinal membrane bulge.
3.Spinal cord planing injury.
4.Epidural abscess and subdural abscess.
5.Vascular malformation in the spinal canal.
6.Spinal cord cavernous disease.
7.Spinal cord atrophy.
8.Intervertebral disc herniation.
9, spinal stenosis.
(XII) Bone, joint and muscle MRI examination
1.Bone and joint trauma.
2, bone and joint tumors and tumor-like lesions.
3, bone marrow lesions.
4, rheumatoid arthritis.
5, ankylosing spondylitis.
6.Ischemic necrosis of femoral head
7.Systemic muscle and soft tissue injury or lesion.
8.Muscle soft tissue tumor.
(XIII) Special examination of MR.
Including magnetic resonance angiography (MRA, MRV), magnetic resonance water imaging (pancreaticobiliary imaging (MRCP), urinary tract imaging (MRU), inner ear water imaging), magnetic resonance functional imaging (diffusion imaging (DWI), magnetic susceptibility imaging (SWI), perfusion imaging (PWI), etc.